CVE-2023-21722 (GCVE-0-2023-21722)

Vulnerability from cvelistv5 – Published: 2023-02-14 19:33 – Updated: 2026-08-19 16:27
VLAI
Title
.NET Framework Denial of Service Vulnerability
Summary
.NET Framework Denial of Service Vulnerability
Severity
5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-07-15 20:52 UTC
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
Impacted products
Vendor Product Version CPE status
Microsoft Microsoft .NET Framework 2.0 Service Pack 2 Affected: 2.0.0 , < 2.0.50727.8966 (custom)
guessed Create a notification for this product.
Microsoft Microsoft .NET Framework 3.0 Service Pack 2 Affected: 3.0.0 , < 2.0.50727.8966 (custom)
guessed Create a notification for this product.
Microsoft Microsoft .NET Framework 3.5 Affected: 3.5.0 , < 3.5.50727.8966 (custom)
guessed Create a notification for this product.
Microsoft Microsoft .NET Framework 3.5 and 4.6.2 Affected: 4.7.0 , < 10.0.10240.19747 (custom)
guessed Create a notification for this product.
Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 Affected: 4.7.0 , < 10.0.04038.03 (custom)
guessed Create a notification for this product.
Microsoft Microsoft .NET Framework 3.5 AND 4.8 Affected: 4.8.0 , < 10.0.04614.06 (custom)
guessed Create a notification for this product.
Microsoft Microsoft .NET Framework 3.5 AND 4.8.1 Affected: 4.8.1 , < 10.0.09139.02 (custom)
guessed Create a notification for this product.
Microsoft Microsoft .NET Framework 3.5.1 Affected: 3.5.0 , < 3.5.50727.8966 (custom)
guessed Create a notification for this product.
Microsoft Microsoft .NET Framework 4.6.2 Affected: 4.7.0 , < 4.7.04038.06 (custom)
guessed Create a notification for this product.
Microsoft Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Affected: 4.7.0 , < 4.7.04614.08 (custom)
guessed Create a notification for this product.
Microsoft Microsoft .NET Framework 4.8 Affected: 4.8.0 , < 4.8.4614.08 (custom)
guessed Create a notification for this product.
Date Public
2023-02-14 08:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-21722",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-15T20:52:17.319350Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-15T20:52:25.380Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T09:51:49.434Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": ".NET Framework Denial of Service Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21722"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "platforms": [
            "Windows Server 2008 for 32-bit Systems Service Pack 2",
            "Windows Server 2008 for x64-based Systems Service Pack 2"
          ],
          "product": "Microsoft .NET Framework 2.0 Service Pack 2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "2.0.50727.8966",
              "status": "affected",
              "version": "2.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "Windows Server 2008 for 32-bit Systems Service Pack 2",
            "Windows Server 2008 for x64-based Systems Service Pack 2"
          ],
          "product": "Microsoft .NET Framework 3.0 Service Pack 2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "2.0.50727.8966",
              "status": "affected",
              "version": "3.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "Windows Server 2012",
            "Windows Server 2012 (Server Core installation)",
            "Windows Server 2012 R2",
            "Windows Server 2012 R2 (Server Core installation)"
          ],
          "product": "Microsoft .NET Framework 3.5",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "3.5.50727.8966",
              "status": "affected",
              "version": "3.5.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "Windows 10 for 32-bit Systems",
            "Windows 10 for x64-based Systems"
          ],
          "product": "Microsoft .NET Framework 3.5 and 4.6.2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.10240.19747",
              "status": "affected",
              "version": "4.7.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "Windows 10 Version 1607 for 32-bit Systems",
            "Windows 10 Version 1607 for x64-based Systems",
            "Windows 10 Version 1809 for 32-bit Systems",
            "Windows 10 Version 1809 for ARM64-based Systems",
            "Windows 10 Version 1809 for x64-based Systems",
            "Windows Server 2016",
            "Windows Server 2016 (Server Core installation)",
            "Windows Server 2019",
            "Windows Server 2019 (Server Core installation)"
          ],
          "product": "Microsoft .NET Framework 3.5 AND 4.7.2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.04038.03",
              "status": "affected",
              "version": "4.7.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "Windows 10 Version 1607 for 32-bit Systems",
            "Windows 10 Version 1607 for x64-based Systems",
            "Windows 10 Version 1809 for 32-bit Systems",
            "Windows 10 Version 1809 for x64-based Systems",
            "Windows 10 Version 20H2 for 32-bit Systems",
            "Windows 10 Version 20H2 for ARM64-based Systems",
            "Windows 10 Version 21H2 for 32-bit Systems",
            "Windows 10 Version 21H2 for ARM64-based Systems",
            "Windows 10 Version 21H2 for x64-based Systems",
            "Windows 10 Version 22H2 for 32-bit Systems",
            "Windows 10 Version 22H2 for ARM64-based Systems",
            "Windows 10 Version 22H2 for x64-based Systems",
            "Windows 11 version 21H2 for ARM64-based Systems",
            "Windows 11 version 21H2 for x64-based Systems",
            "Windows Server 2016",
            "Windows Server 2016 (Server Core installation)",
            "Windows Server 2019",
            "Windows Server 2019 (Server Core installation)",
            "Windows Server 2022",
            "Windows Server 2022 (Server Core installation)"
          ],
          "product": "Microsoft .NET Framework 3.5 AND 4.8",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.04614.06",
              "status": "affected",
              "version": "4.8.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "Windows 10 Version 20H2 for 32-bit Systems",
            "Windows 10 Version 20H2 for ARM64-based Systems",
            "Windows 10 Version 21H2 for 32-bit Systems",
            "Windows 10 Version 21H2 for ARM64-based Systems",
            "Windows 10 Version 21H2 for x64-based Systems",
            "Windows 10 Version 22H2 for 32-bit Systems",
            "Windows 10 Version 22H2 for ARM64-based Systems",
            "Windows 10 Version 22H2 for x64-based Systems",
            "Windows 11 version 21H2 for ARM64-based Systems",
            "Windows 11 version 21H2 for x64-based Systems",
            "Windows 11 Version 22H2 for ARM64-based Systems",
            "Windows 11 Version 22H2 for x64-based Systems",
            "Windows Server 2022",
            "Windows Server 2022 (Server Core installation)"
          ],
          "product": "Microsoft .NET Framework 3.5 AND 4.8.1",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "10.0.09139.02",
              "status": "affected",
              "version": "4.8.1",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
            "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)"
          ],
          "product": "Microsoft .NET Framework 3.5.1",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "3.5.50727.8966",
              "status": "affected",
              "version": "3.5.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "Windows Server 2008 for 32-bit Systems Service Pack 2",
            "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)",
            "Windows Server 2008 for x64-based Systems Service Pack 2",
            "Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)"
          ],
          "product": "Microsoft .NET Framework 4.6.2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "4.7.04038.06",
              "status": "affected",
              "version": "4.7.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
            "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
            "Windows Server 2012",
            "Windows Server 2012 (Server Core installation)",
            "Windows Server 2012 R2",
            "Windows Server 2012 R2 (Server Core installation)"
          ],
          "product": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "4.7.04614.08",
              "status": "affected",
              "version": "4.7.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
            "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
            "Windows Server 2012",
            "Windows Server 2012 (Server Core installation)",
            "Windows Server 2012 R2",
            "Windows Server 2012 R2 (Server Core installation)"
          ],
          "product": "Microsoft .NET Framework 4.8",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "4.8.4614.08",
              "status": "affected",
              "version": "4.8.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.8.4614.08",
                  "versionStartIncluding": "4.8.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "10.0.04614.06",
                  "versionStartIncluding": "4.8.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "10.0.04038.03",
                  "versionStartIncluding": "4.7.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.7.04614.08",
                  "versionStartIncluding": "4.7.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "10.0.09139.02",
                  "versionStartIncluding": "4.8.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.7.04038.06",
                  "versionStartIncluding": "4.7.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "10.0.10240.19747",
                  "versionStartIncluding": "4.7.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:.net:*:sp2:*:*:*:*:*:*",
                  "versionEndExcluding": "2.0.50727.8966",
                  "versionStartIncluding": "2.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:.net:*:sp2:*:*:*:*:*:*",
                  "versionEndExcluding": "2.0.50727.8966",
                  "versionStartIncluding": "3.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "3.5.50727.8966",
                  "versionStartIncluding": "3.5.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "3.5.50727.8966",
                  "versionStartIncluding": "3.5.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "datePublic": "2023-02-14T08:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": ".NET Framework Denial of Service Vulnerability"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "CWE-59: Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T16:27:14.494Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": ".NET Framework Denial of Service Vulnerability",
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21722"
        }
      ],
      "title": ".NET Framework Denial of Service Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2023-21722",
    "datePublished": "2023-02-14T19:33:47.590Z",
    "dateReserved": "2022-12-13T18:08:03.493Z",
    "dateUpdated": "2026-08-19T16:27:14.494Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-21722",
      "date": "2026-09-27",
      "epss": "0.00917",
      "percentile": "0.58619"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "platforms": [
                  "Windows Server 2008 for 32-bit Systems Service Pack 2",
                  "Windows Server 2008 for x64-based Systems Service Pack 2"
                ],
                "product": "Microsoft .NET Framework 2.0 Service Pack 2",
                "vendor": "Microsoft",
                "versions": [
                  {
                    "lessThan": "2.0.50727.8966",
                    "status": "affected",
                    "version": "2.0.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "platforms": [
                  "Windows Server 2008 for 32-bit Systems Service Pack 2",
                  "Windows Server 2008 for x64-based Systems Service Pack 2"
                ],
                "product": "Microsoft .NET Framework 3.0 Service Pack 2",
                "vendor": "Microsoft",
                "versions": [
                  {
                    "lessThan": "2.0.50727.8966",
                    "status": "affected",
                    "version": "3.0.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "platforms": [
                  "Windows Server 2012",
                  "Windows Server 2012 (Server Core installation)",
                  "Windows Server 2012 R2",
                  "Windows Server 2012 R2 (Server Core installation)"
                ],
                "product": "Microsoft .NET Framework 3.5",
                "vendor": "Microsoft",
                "versions": [
                  {
                    "lessThan": "3.5.50727.8966",
                    "status": "affected",
                    "version": "3.5.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "platforms": [
                  "Windows 10 for 32-bit Systems",
                  "Windows 10 for x64-based Systems"
                ],
                "product": "Microsoft .NET Framework 3.5 and 4.6.2",
                "vendor": "Microsoft",
                "versions": [
                  {
                    "lessThan": "10.0.10240.19747",
                    "status": "affected",
                    "version": "4.7.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "platforms": [
                  "Windows 10 Version 1607 for 32-bit Systems",
                  "Windows 10 Version 1607 for x64-based Systems",
                  "Windows 10 Version 1809 for 32-bit Systems",
                  "Windows 10 Version 1809 for ARM64-based Systems",
                  "Windows 10 Version 1809 for x64-based Systems",
                  "Windows Server 2016",
                  "Windows Server 2016 (Server Core installation)",
                  "Windows Server 2019",
                  "Windows Server 2019 (Server Core installation)"
                ],
                "product": "Microsoft .NET Framework 3.5 AND 4.7.2",
                "vendor": "Microsoft",
                "versions": [
                  {
                    "lessThan": "10.0.04038.03",
                    "status": "affected",
                    "version": "4.7.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "platforms": [
                  "Windows 10 Version 1607 for 32-bit Systems",
                  "Windows 10 Version 1607 for x64-based Systems",
                  "Windows 10 Version 1809 for 32-bit Systems",
                  "Windows 10 Version 1809 for x64-based Systems",
                  "Windows 10 Version 20H2 for 32-bit Systems",
                  "Windows 10 Version 20H2 for ARM64-based Systems",
                  "Windows 10 Version 21H2 for 32-bit Systems",
                  "Windows 10 Version 21H2 for ARM64-based Systems",
                  "Windows 10 Version 21H2 for x64-based Systems",
                  "Windows 10 Version 22H2 for 32-bit Systems",
                  "Windows 10 Version 22H2 for ARM64-based Systems",
                  "Windows 10 Version 22H2 for x64-based Systems",
                  "Windows 11 version 21H2 for ARM64-based Systems",
                  "Windows 11 version 21H2 for x64-based Systems",
                  "Windows Server 2016",
                  "Windows Server 2016 (Server Core installation)",
                  "Windows Server 2019",
                  "Windows Server 2019 (Server Core installation)",
                  "Windows Server 2022",
                  "Windows Server 2022 (Server Core installation)"
                ],
                "product": "Microsoft .NET Framework 3.5 AND 4.8",
                "vendor": "Microsoft",
                "versions": [
                  {
                    "lessThan": "10.0.04614.06",
                    "status": "affected",
                    "version": "4.8.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "platforms": [
                  "Windows 10 Version 20H2 for 32-bit Systems",
                  "Windows 10 Version 20H2 for ARM64-based Systems",
                  "Windows 10 Version 21H2 for 32-bit Systems",
                  "Windows 10 Version 21H2 for ARM64-based Systems",
                  "Windows 10 Version 21H2 for x64-based Systems",
                  "Windows 10 Version 22H2 for 32-bit Systems",
                  "Windows 10 Version 22H2 for ARM64-based Systems",
                  "Windows 10 Version 22H2 for x64-based Systems",
                  "Windows 11 version 21H2 for ARM64-based Systems",
                  "Windows 11 version 21H2 for x64-based Systems",
                  "Windows 11 Version 22H2 for ARM64-based Systems",
                  "Windows 11 Version 22H2 for x64-based Systems",
                  "Windows Server 2022",
                  "Windows Server 2022 (Server Core installation)"
                ],
                "product": "Microsoft .NET Framework 3.5 AND 4.8.1",
                "vendor": "Microsoft",
                "versions": [
                  {
                    "lessThan": "10.0.09139.02",
                    "status": "affected",
                    "version": "4.8.1",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "platforms": [
                  "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
                  "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)"
                ],
                "product": "Microsoft .NET Framework 3.5.1",
                "vendor": "Microsoft",
                "versions": [
                  {
                    "lessThan": "3.5.50727.8966",
                    "status": "affected",
                    "version": "3.5.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "platforms": [
                  "Windows Server 2008 for 32-bit Systems Service Pack 2",
                  "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)",
                  "Windows Server 2008 for x64-based Systems Service Pack 2",
                  "Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)"
                ],
                "product": "Microsoft .NET Framework 4.6.2",
                "vendor": "Microsoft",
                "versions": [
                  {
                    "lessThan": "4.7.04038.06",
                    "status": "affected",
                    "version": "4.7.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "platforms": [
                  "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
                  "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
                  "Windows Server 2012",
                  "Windows Server 2012 (Server Core installation)",
                  "Windows Server 2012 R2",
                  "Windows Server 2012 R2 (Server Core installation)"
                ],
                "product": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2",
                "vendor": "Microsoft",
                "versions": [
                  {
                    "lessThan": "4.7.04614.08",
                    "status": "affected",
                    "version": "4.7.0",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "platforms": [
                  "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
                  "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
                  "Windows Server 2012",
                  "Windows Server 2012 (Server Core installation)",
                  "Windows Server 2012 R2",
                  "Windows Server 2012 R2 (Server Core installation)"
                ],
                "product": "Microsoft .NET Framework 4.8",
                "vendor": "Microsoft",
                "versions": [
                  {
                    "lessThan": "4.8.4614.08",
                    "status": "affected",
                    "version": "4.8.0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "secure@microsoft.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E039CE1F-B988-4741-AE2E-5B36E2AF9688",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3EF7A75E-EE27-4AA7-8D84-9D696728A4CE",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x64:*",
                    "matchCriteriaId": "5E491E46-1917-41FE-8F9A-BB0BDDEB42C3",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1607:-:*:*:*:*:*:x86:*",
                    "matchCriteriaId": "0A1BC97A-263E-4291-8AEF-02EE4E6031E9",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x64:*",
                    "matchCriteriaId": "306B7CE6-8239-4AED-9ED4-4C9F5B349F58",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1809:-:*:*:*:*:*:x86:*",
                    "matchCriteriaId": "345FCD64-D37B-425B-B64C-8B1640B7E850",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DB79EE26-FC32-417D-A49C-A1A63165A968",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E039CE1F-B988-4741-AE2E-5B36E2AF9688",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2D3F18AF-84ED-473B-A8DF-65EB23C475AF",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B4A637D6-78D0-400D-82A4-FDEFCED069B1",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*",
                    "matchCriteriaId": "4C3391B0-C6A6-4F6F-AC1B-AD0927C2C986",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*",
                    "matchCriteriaId": "112871CE-B37B-454E-AC10-A285D92CCE0E",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:x64:*",
                    "matchCriteriaId": "E461193F-C65C-47D7-89B6-F1C68877E3CC",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:x86:*",
                    "matchCriteriaId": "37833862-8FE6-4007-84F1-88ACF5242F12",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*",
                    "matchCriteriaId": "7B844383-85F5-41FA-AE73-C6C6F80734E1",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*",
                    "matchCriteriaId": "3C3151EE-B690-4412-9520-5A0EDC0E91F4",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*",
                    "matchCriteriaId": "758EC2EA-ED6B-490D-A4E5-FC26AC7A0753",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7F7487B8-BE4D-4707-9E20-39840A260831",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:arm64:*",
                    "matchCriteriaId": "E3D0CEE5-45D9-4710-B170-A33A8D0D55CF",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:x64:*",
                    "matchCriteriaId": "39F5DAC9-ED40-4870-AA86-941B0E675728",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "041FF8BA-0B12-4A1F-B4BF-9C4F33B7C1E7",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DB79EE26-FC32-417D-A49C-A1A63165A968",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "821614DD-37DD-44E2-A8A4-FE8D23A33C3C",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E039CE1F-B988-4741-AE2E-5B36E2AF9688",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:4.8.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "934D4E46-12C1-41DC-A28C-A2C430E965E4",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "99895822-BFAB-4CB1-8C70-41F0F714B31F",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "979081E3-FB60-43E0-BF86-ED301E7EF25C",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7F7487B8-BE4D-4707-9E20-39840A260831",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:arm64:*",
                    "matchCriteriaId": "E3D0CEE5-45D9-4710-B170-A33A8D0D55CF",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:x64:*",
                    "matchCriteriaId": "39F5DAC9-ED40-4870-AA86-941B0E675728",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:arm64:*",
                    "matchCriteriaId": "216BE28A-ABCD-44B5-9689-770B9A62BD35",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:x64:*",
                    "matchCriteriaId": "76AB4B84-CF32-4F18-8AC7-D41EDD3792B1",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "821614DD-37DD-44E2-A8A4-FE8D23A33C3C",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E039CE1F-B988-4741-AE2E-5B36E2AF9688",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "8EDC4407-7E92-4E60-82F0-0C87D1860D3A",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*",
                    "matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:3.0:sp2:*:*:*:*:*:*",
                    "matchCriteriaId": "D400E856-2B2E-4CEA-8CA5-309FDF371CEA",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*",
                    "matchCriteriaId": "5F422A8C-2C4E-42C8-B420-E0728037E15C",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:*",
                    "matchCriteriaId": "42A6DF09-B8E1-414D-97E7-453566055279",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*",
                    "matchCriteriaId": "5F422A8C-2C4E-42C8-B420-E0728037E15C",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E039CE1F-B988-4741-AE2E-5B36E2AF9688",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A16AD2B0-2189-4E8E-B7FC-CE598CA1CB2D",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "BBAB8E45-4E6E-4ABD-A5DD-3F72DB4A7AE6",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1511:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7E43B1A3-8DAF-4FB5-9549-190E1F2AD9E6",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B4A637D6-78D0-400D-82A4-FDEFCED069B1",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1703:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "17A026A3-F59C-48F5-9834-5FB054642136",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1709:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "180EBE38-18CF-4298-8F9B-9457A31E2FF3",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1803:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "102319F6-1C4B-4359-8FFD-D104FF5B1C51",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0E2A7014-8078-4C40-91E3-ACA60A98AC68",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1903:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5315F244-C80B-48E0-AEA3-53D82F70C892",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "8F506E8F-4792-49DA-9510-460D97C582ED",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DBFB431A-F9B7-47C3-B26E-910127D3BBB7",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "99895822-BFAB-4CB1-8C70-41F0F714B31F",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5E37CC1E-4DA1-4A05-AF64-00381E6ECCE2",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "979081E3-FB60-43E0-BF86-ED301E7EF25C",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7F7487B8-BE4D-4707-9E20-39840A260831",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A16AD2B0-2189-4E8E-B7FC-CE598CA1CB2D",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*",
                    "matchCriteriaId": "5F422A8C-2C4E-42C8-B420-E0728037E15C",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A16AD2B0-2189-4E8E-B7FC-CE598CA1CB2D",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:*",
                    "matchCriteriaId": "734112B3-1383-4BE3-8721-C0F84566B764",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "36B0E40A-84EF-4099-A395-75D6B8CDA196",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3EF7A75E-EE27-4AA7-8D84-9D696728A4CE",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*",
                    "matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:microsoft:.net_framework:4.8:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2D3F18AF-84ED-473B-A8DF-65EB23C475AF",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*",
                    "matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074",
                    "vulnerable": false
                  },
                  {
                    "criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": ".NET Framework Denial of Service Vulnerability"
          }
        ],
        "id": "CVE-2023-21722",
        "lastModified": "2026-08-19T17:18:14.363",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.0,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.3,
              "impactScore": 3.6,
              "source": "secure@microsoft.com",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.0,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.3,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2023-21722",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-15T20:52:17.319350Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2023-02-14T20:15:14.773",
        "references": [
          {
            "source": "secure@microsoft.com",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21722"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21722"
          }
        ],
        "sourceIdentifier": "secure@microsoft.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-59"
              }
            ],
            "source": "secure@microsoft.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-03-27T11:48:04+00:00",
      "cve": "CVE-2023-21722",
      "id": "CVE-2023-21722",
      "initial_release_date": "2023-02-14T08:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": ".NET Framework Denial of Service Vulnerability",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-21722.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-02T09:51:49.434Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "name": ".NET Framework Denial of Service Vulnerability",
                "tags": [
                  "vendor-advisory",
                  "x_transferred"
                ],
                "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21722"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2023-21722",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-07-15T20:52:17.319350Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-07-15T20:52:22.791Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "platforms": [
                "Windows Server 2008 for 32-bit Systems Service Pack 2",
                "Windows Server 2008 for x64-based Systems Service Pack 2"
              ],
              "product": "Microsoft .NET Framework 2.0 Service Pack 2",
              "vendor": "Microsoft",
              "versions": [
                {
                  "lessThan": "2.0.50727.8966",
                  "status": "affected",
                  "version": "2.0.0",
                  "versionType": "custom"
                }
              ]
            },
            {
              "platforms": [
                "Windows Server 2008 for 32-bit Systems Service Pack 2",
                "Windows Server 2008 for x64-based Systems Service Pack 2"
              ],
              "product": "Microsoft .NET Framework 3.0 Service Pack 2",
              "vendor": "Microsoft",
              "versions": [
                {
                  "lessThan": "2.0.50727.8966",
                  "status": "affected",
                  "version": "3.0.0",
                  "versionType": "custom"
                }
              ]
            },
            {
              "platforms": [
                "Windows Server 2012",
                "Windows Server 2012 (Server Core installation)",
                "Windows Server 2012 R2",
                "Windows Server 2012 R2 (Server Core installation)"
              ],
              "product": "Microsoft .NET Framework 3.5",
              "vendor": "Microsoft",
              "versions": [
                {
                  "lessThan": "3.5.50727.8966",
                  "status": "affected",
                  "version": "3.5.0",
                  "versionType": "custom"
                }
              ]
            },
            {
              "platforms": [
                "Windows 10 for 32-bit Systems",
                "Windows 10 for x64-based Systems"
              ],
              "product": "Microsoft .NET Framework 3.5 and 4.6.2",
              "vendor": "Microsoft",
              "versions": [
                {
                  "lessThan": "10.0.10240.19747",
                  "status": "affected",
                  "version": "4.7.0",
                  "versionType": "custom"
                }
              ]
            },
            {
              "platforms": [
                "Windows 10 Version 1607 for 32-bit Systems",
                "Windows 10 Version 1607 for x64-based Systems",
                "Windows 10 Version 1809 for 32-bit Systems",
                "Windows 10 Version 1809 for ARM64-based Systems",
                "Windows 10 Version 1809 for x64-based Systems",
                "Windows Server 2016",
                "Windows Server 2016 (Server Core installation)",
                "Windows Server 2019",
                "Windows Server 2019 (Server Core installation)"
              ],
              "product": "Microsoft .NET Framework 3.5 AND 4.7.2",
              "vendor": "Microsoft",
              "versions": [
                {
                  "lessThan": "10.0.04038.03",
                  "status": "affected",
                  "version": "4.7.0",
                  "versionType": "custom"
                }
              ]
            },
            {
              "platforms": [
                "Windows 10 Version 1607 for 32-bit Systems",
                "Windows 10 Version 1607 for x64-based Systems",
                "Windows 10 Version 1809 for 32-bit Systems",
                "Windows 10 Version 1809 for x64-based Systems",
                "Windows 10 Version 20H2 for 32-bit Systems",
                "Windows 10 Version 20H2 for ARM64-based Systems",
                "Windows 10 Version 21H2 for 32-bit Systems",
                "Windows 10 Version 21H2 for ARM64-based Systems",
                "Windows 10 Version 21H2 for x64-based Systems",
                "Windows 10 Version 22H2 for 32-bit Systems",
                "Windows 10 Version 22H2 for ARM64-based Systems",
                "Windows 10 Version 22H2 for x64-based Systems",
                "Windows 11 version 21H2 for ARM64-based Systems",
                "Windows 11 version 21H2 for x64-based Systems",
                "Windows Server 2016",
                "Windows Server 2016 (Server Core installation)",
                "Windows Server 2019",
                "Windows Server 2019 (Server Core installation)",
                "Windows Server 2022",
                "Windows Server 2022 (Server Core installation)"
              ],
              "product": "Microsoft .NET Framework 3.5 AND 4.8",
              "vendor": "Microsoft",
              "versions": [
                {
                  "lessThan": "10.0.04614.06",
                  "status": "affected",
                  "version": "4.8.0",
                  "versionType": "custom"
                }
              ]
            },
            {
              "platforms": [
                "Windows 10 Version 20H2 for 32-bit Systems",
                "Windows 10 Version 20H2 for ARM64-based Systems",
                "Windows 10 Version 21H2 for 32-bit Systems",
                "Windows 10 Version 21H2 for ARM64-based Systems",
                "Windows 10 Version 21H2 for x64-based Systems",
                "Windows 10 Version 22H2 for 32-bit Systems",
                "Windows 10 Version 22H2 for ARM64-based Systems",
                "Windows 10 Version 22H2 for x64-based Systems",
                "Windows 11 version 21H2 for ARM64-based Systems",
                "Windows 11 version 21H2 for x64-based Systems",
                "Windows 11 Version 22H2 for ARM64-based Systems",
                "Windows 11 Version 22H2 for x64-based Systems",
                "Windows Server 2022",
                "Windows Server 2022 (Server Core installation)"
              ],
              "product": "Microsoft .NET Framework 3.5 AND 4.8.1",
              "vendor": "Microsoft",
              "versions": [
                {
                  "lessThan": "10.0.09139.02",
                  "status": "affected",
                  "version": "4.8.1",
                  "versionType": "custom"
                }
              ]
            },
            {
              "platforms": [
                "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
                "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)"
              ],
              "product": "Microsoft .NET Framework 3.5.1",
              "vendor": "Microsoft",
              "versions": [
                {
                  "lessThan": "3.5.50727.8966",
                  "status": "affected",
                  "version": "3.5.0",
                  "versionType": "custom"
                }
              ]
            },
            {
              "platforms": [
                "Windows Server 2008 for 32-bit Systems Service Pack 2",
                "Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)",
                "Windows Server 2008 for x64-based Systems Service Pack 2",
                "Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)"
              ],
              "product": "Microsoft .NET Framework 4.6.2",
              "vendor": "Microsoft",
              "versions": [
                {
                  "lessThan": "4.7.04038.06",
                  "status": "affected",
                  "version": "4.7.0",
                  "versionType": "custom"
                }
              ]
            },
            {
              "platforms": [
                "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
                "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
                "Windows Server 2012",
                "Windows Server 2012 (Server Core installation)",
                "Windows Server 2012 R2",
                "Windows Server 2012 R2 (Server Core installation)"
              ],
              "product": "Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2",
              "vendor": "Microsoft",
              "versions": [
                {
                  "lessThan": "4.7.04614.08",
                  "status": "affected",
                  "version": "4.7.0",
                  "versionType": "custom"
                }
              ]
            },
            {
              "platforms": [
                "Windows Server 2008 R2 for x64-based Systems Service Pack 1",
                "Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)",
                "Windows Server 2012",
                "Windows Server 2012 (Server Core installation)",
                "Windows Server 2012 R2",
                "Windows Server 2012 R2 (Server Core installation)"
              ],
              "product": "Microsoft .NET Framework 4.8",
              "vendor": "Microsoft",
              "versions": [
                {
                  "lessThan": "4.8.4614.08",
                  "status": "affected",
                  "version": "4.8.0",
                  "versionType": "custom"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.8.4614.08",
                      "versionStartIncluding": "4.8.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "10.0.04614.06",
                      "versionStartIncluding": "4.8.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "10.0.04038.03",
                      "versionStartIncluding": "4.7.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.7.04614.08",
                      "versionStartIncluding": "4.7.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "10.0.09139.02",
                      "versionStartIncluding": "4.8.1",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.7.04038.06",
                      "versionStartIncluding": "4.7.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "10.0.10240.19747",
                      "versionStartIncluding": "4.7.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:microsoft:.net:*:sp2:*:*:*:*:*:*",
                      "versionEndExcluding": "2.0.50727.8966",
                      "versionStartIncluding": "2.0.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:microsoft:.net:*:sp2:*:*:*:*:*:*",
                      "versionEndExcluding": "2.0.50727.8966",
                      "versionStartIncluding": "3.0.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "3.5.50727.8966",
                      "versionStartIncluding": "3.5.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "3.5.50727.8966",
                      "versionStartIncluding": "3.5.0",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "datePublic": "2023-02-14T08:00:00.000Z",
          "descriptions": [
            {
              "lang": "en-US",
              "value": ".NET Framework Denial of Service Vulnerability"
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 5,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
                "version": "3.1"
              },
              "format": "CVSS",
              "scenarios": [
                {
                  "lang": "en-US",
                  "value": "GENERAL"
                }
              ]
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-59",
                  "description": "CWE-59: Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
                  "lang": "en-US",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-19T16:27:14.494Z",
            "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
            "shortName": "microsoft"
          },
          "references": [
            {
              "name": ".NET Framework Denial of Service Vulnerability",
              "tags": [
                "vendor-advisory",
                "patch"
              ],
              "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21722"
            }
          ],
          "title": ".NET Framework Denial of Service Vulnerability"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "assignerShortName": "microsoft",
        "cveId": "CVE-2023-21722",
        "datePublished": "2023-02-14T19:33:47.590Z",
        "dateReserved": "2022-12-13T18:08:03.493Z",
        "dateUpdated": "2026-08-19T16:27:14.494Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.