CVE-2026-50650 (GCVE-0-2026-50650)

Vulnerability from cvelistv5 – Published: 2026-07-14 19:29 – Updated: 2026-07-14 19:40
VLAI
Title
.NET Framework Elevation of Privilege Vulnerability
Summary
Improper control of generation of code ('code injection') in .NET Framework allows an unauthorized attacker to elevate privileges locally.
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Date Public
2026-07-14 14:00
Show details on NVD website

{
  "containers": {
    "cna": {
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        {
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          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "8.0.29",
              "status": "affected",
              "version": "8.0.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": ".NET 9.0",
          "vendor": "Microsoft",
          "versions": [
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              "status": "affected",
              "version": "9.0.0",
              "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": "2.0.50727.8983 \u0026 3.0.30729.8978",
              "status": "affected",
              "version": "3.5.0",
              "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 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": "2.0.50727.9069 \u0026 3.0.30729.9067 \u0026 4.7.4143.0",
              "status": "affected",
              "version": "4.7.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "Windows 10 Version 1809 for 32-bit Systems",
            "Windows 10 Version 1809 for x64-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 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": "2.0.50727.9069 \u0026 3.0.30729.9067 \u0026 4.8.4803.0",
              "status": "affected",
              "version": "4.8.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "platforms": [
            "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 23H2 for ARM64-based Systems",
            "Windows 11 Version 23H2 for x64-based Systems",
            "Windows 11 Version 24H2 for ARM64-based Systems",
            "Windows 11 Version 24H2 for x64-based Systems",
            "Windows 11 Version 25H2 for ARM64-based Systems",
            "Windows 11 Version 25H2 for x64-based Systems",
            "Windows 11 Version 26H1 for ARM64-based Systems",
            "Windows 11 version 26H1 for x64-based Systems",
            "Windows Server 2022",
            "Windows Server 2022 (Server Core installation)",
            "Windows Server 2025",
            "Windows Server 2025 (Server Core installation)"
          ],
          "product": "Microsoft .NET Framework 3.5 AND 4.8.1",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "2.0.50727.9182 \u0026 3.0.30729.9168 \u0026 4.8.9339.0",
              "status": "affected",
              "version": "4.8.1",
              "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 4.6.2/4.7/4.7.1/4.7.2",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "4.7.4143.0",
              "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 Server 2012",
            "Windows Server 2012 (Server Core installation)",
            "Windows Server 2012 R2",
            "Windows Server 2012 R2 (Server Core installation)",
            "Windows Server 2016",
            "Windows Server 2016 (Server Core installation)"
          ],
          "product": "Microsoft .NET Framework 4.8",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "4.8.4803.0",
              "status": "affected",
              "version": "4.8.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Microsoft Visual Studio 2022 version 17.12",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "17.12.22",
              "status": "affected",
              "version": "17.12.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Microsoft Visual Studio 2022 version 17.14",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "17.14.36",
              "status": "affected",
              "version": "17.14.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "product": "Microsoft Visual Studio 2026 version 18.7",
          "vendor": "Microsoft",
          "versions": [
            {
              "lessThan": "18.7.4",
              "status": "affected",
              "version": "18.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
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                  "versionStartIncluding": "8.0.0",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "9.0.18",
                  "versionStartIncluding": "9.0.0",
                  "vulnerable": true
                },
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                },
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                  "versionStartIncluding": "4.8.1",
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                },
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                  "versionStartIncluding": "3.5.0",
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              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "datePublic": "2026-07-14T14:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": "Improper control of generation of code (\u0027code injection\u0027) in .NET Framework allows an unauthorized attacker to elevate privileges locally."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
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              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-94",
              "description": "CWE-94: Improper Control of Generation of Code (\u0027Code Injection\u0027)",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-14T19:40:13.271Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": ".NET Framework Elevation of Privilege Vulnerability",
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50650"
        }
      ],
      "title": ".NET Framework Elevation of Privilege Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2026-50650",
    "datePublished": "2026-07-14T19:29:58.620Z",
    "dateReserved": "2026-06-05T14:33:50.830Z",
    "dateUpdated": "2026-07-14T19:40:13.271Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-50650\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2026-07-14T20:17:38.230\",\"lastModified\":\"2026-07-14T20:35:32.720\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Improper control of generation of code (\u0027code injection\u0027) in .NET Framework allows an unauthorized attacker to elevate privileges locally.\"}],\"affected\":[{\"source\":\"secure@microsoft.com\",\"affectedData\":[{\"vendor\":\"Microsoft\",\"product\":\".NET 8.0\",\"versions\":[{\"version\":\"8.0.0\",\"lessThan\":\"8.0.29\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\".NET 9.0\",\"versions\":[{\"version\":\"9.0.0\",\"lessThan\":\"9.0.18\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Microsoft\",\"product\":\"Microsoft .NET Framework 3.5\",\"platforms\":[\"Windows Server 2012\",\"Windows Server 2012 (Server Core 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  }
}



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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.

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