CVE-2021-40368 (GCVE-0-2021-40368)

Vulnerability from cvelistv5 – Published: 2022-04-12 09:07 – Updated: 2025-04-21 13:54
VLAI
Summary
A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414-2 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 DP V7 (All versions), SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416-2 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 DP V7 (All versions), SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 416F-2 DP V7 (All versions), SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions < V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions < V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions < V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions < V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp. This could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-18 15:12 UTC
CWE
  • CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
siemens CNA under the icscert root
CNA scorecard C 65/100 over 99 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Siemens SIMATIC S7-400 CPU 412-1 DP V7 Affected: All versions
guessed Create a notification for this product.
Siemens SIMATIC S7-400 CPU 412-2 DP V7 Affected: All versions
guessed Create a notification for this product.
Siemens SIMATIC S7-400 CPU 412-2 PN/DP V7 Affected: All versions < V7.0.3
guessed Create a notification for this product.
Siemens SIMATIC S7-400 CPU 414-2 DP V7 Affected: All versions
guessed Create a notification for this product.
Siemens SIMATIC S7-400 CPU 414-3 DP V7 Affected: All versions
guessed Create a notification for this product.
Siemens SIMATIC S7-400 CPU 414-3 PN/DP V7 Affected: All versions < V7.0.3
guessed Create a notification for this product.
Siemens SIMATIC S7-400 CPU 414F-3 PN/DP V7 Affected: All versions < V7.0.3
guessed Create a notification for this product.
Siemens SIMATIC S7-400 CPU 416-2 DP V7 Affected: All versions
guessed Create a notification for this product.
Siemens SIMATIC S7-400 CPU 416-3 DP V7 Affected: All versions
guessed Create a notification for this product.
Siemens SIMATIC S7-400 CPU 416-3 PN/DP V7 Affected: All versions < V7.0.3
guessed Create a notification for this product.
Siemens SIMATIC S7-400 CPU 416F-2 DP V7 Affected: All versions
guessed Create a notification for this product.
Siemens SIMATIC S7-400 CPU 416F-3 PN/DP V7 Affected: All versions < V7.0.3
guessed Create a notification for this product.
Siemens SIMATIC S7-400 CPU 417-4 DP V7 Affected: All versions
guessed Create a notification for this product.
Siemens SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) Affected: All versions < V6.0.10
guessed Create a notification for this product.
Siemens SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) Affected: All versions < V10.1
guessed Create a notification for this product.
Siemens SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) Affected: All versions < V8.2.3
guessed Create a notification for this product.
Siemens SIPLUS S7-400 CPU 414-3 PN/DP V7 Affected: All versions < V7.0.3
guessed Create a notification for this product.
Siemens SIPLUS S7-400 CPU 416-3 PN/DP V7 Affected: All versions < V7.0.3
guessed Create a notification for this product.
Siemens SIPLUS S7-400 CPU 416-3 V7 Affected: All versions
guessed Create a notification for this product.
Siemens SIPLUS S7-400 CPU 417-4 V7 Affected: All versions
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T02:44:09.608Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-40368",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-18T15:12:26.532560Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-21T13:54:27.056Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": " SIMATIC S7-400 CPU 412-1 DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": " SIMATIC S7-400 CPU 412-2 DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": " SIMATIC S7-400 CPU 412-2 PN/DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V7.0.3"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": " SIMATIC S7-400 CPU 414-2 DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": " SIMATIC S7-400 CPU 414-3 DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": " SIMATIC S7-400 CPU 414-3 PN/DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V7.0.3"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": " SIMATIC S7-400 CPU 414F-3 PN/DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V7.0.3"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": " SIMATIC S7-400 CPU 416-2 DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": " SIMATIC S7-400 CPU 416-3 DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": " SIMATIC S7-400 CPU 416-3 PN/DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V7.0.3"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": " SIMATIC S7-400 CPU 416F-2 DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": " SIMATIC S7-400 CPU 416F-3 PN/DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V7.0.3"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": " SIMATIC S7-400 CPU 417-4 DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V6.0.10"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V10.1"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V8.2.3"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIPLUS S7-400 CPU 414-3 PN/DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V7.0.3"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIPLUS S7-400 CPU 416-3 PN/DP V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V7.0.3"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIPLUS S7-400 CPU 416-3 V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIPLUS S7-400 CPU 417-4 V7",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been identified in  SIMATIC S7-400 CPU 412-1 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 414-2 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 416-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 416F-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions \u003c V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions \u003c V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions \u003c V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.\n\nThis could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-04-11T09:02:03.176Z",
        "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "shortName": "siemens"
      },
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
    "assignerShortName": "siemens",
    "cveId": "CVE-2021-40368",
    "datePublished": "2022-04-12T09:07:23.000Z",
    "dateReserved": "2021-09-01T00:00:00.000Z",
    "dateUpdated": "2025-04-21T13:54:27.056Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-40368",
      "date": "2026-10-22",
      "epss": "0.01004",
      "percentile": "0.62611"
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:siemens:simatic_s7-400h_v6_firmware:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B9F393A1-B2CD-4584-A401-F782D52CF419",
                    "versionEndExcluding": "6.0.10",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:h:siemens:simatic_s7-400h_v6:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "1D082EB6-3C13-40C1-9949-179DC59037C1",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:siemens:simatic_s7-400_pn\\/dp_v7_firmware:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "EC44664E-830D-4122-A97A-1AFA61F5BBB5",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:h:siemens:simatic_s7-400_pn\\/dp_v7:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C48D93F2-FB6B-4D4D-84FB-3A7CDE89B727",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:siemens:simatic_s7-410_v8_firmware:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "18E1CA5D-3D7D-49D0-A417-235E2AF6075C",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:h:siemens:simatic_s7-410_v8:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "926D9DCF-A7EA-416A-9A07-122D1FCA027B",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:siemens:simatic_s7-410_v10_firmware:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FEB11632-058A-4D56-B176-FC864038E41A",
                    "versionEndExcluding": "10.1",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:h:siemens:simatic_s7-410_v10:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6F240847-0ADC-475C-BDDF-6483A8FF5602",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A vulnerability has been identified in  SIMATIC S7-400 CPU 412-1 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 414-2 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 416-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 416F-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions \u003c V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions \u003c V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions \u003c V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.\n\nThis could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations."
          },
          {
            "lang": "es",
            "value": "Se ha identificado una vulnerabilidad en la familia de CPUs SIMATIC S7-400 H V6 (incluidas las variantes SIPLUS) (todas las versiones anteriores a V6.0.10), la familia de CPUs SIMATIC S7-400 PN/DP V7 (incluidas las variantes SIPLUS) (todas las versiones), la familia de CPUs SIMATIC S7-410 V10 (incluidas las variantes SIPLUS) (todas las versiones anteriores a V10.1) y la familia de CPUs SIMATIC S7-410 V8 (incluidas las variantes SIPLUS) (todas las versiones anteriores a V8.2.3). Los dispositivos afectados manejan incorrectamente paquetes especialmente dise\u00f1ados enviados al puerto 102/tcp. Esto podr\u00eda permitir a un atacante crear una condici\u00f3n de denegaci\u00f3n de servicio. Se necesita un reinicio para restaurar las operaciones normales"
          }
        ],
        "id": "CVE-2021-40368",
        "lastModified": "2024-11-21T06:23:58.173",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 5.0,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "productcert@siemens.com",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Secondary"
            }
          ]
        },
        "published": "2022-04-12T09:15:13.343",
        "references": [
          {
            "source": "productcert@siemens.com",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf"
          }
        ],
        "sourceIdentifier": "productcert@siemens.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-119"
              }
            ],
            "source": "productcert@siemens.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-119"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2025-05-29T04:48:29+00:00",
      "cve": "CVE-2021-40368",
      "id": "CVE-2021-40368",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2021-40368",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-40368.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-04T02:44:09.608Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2021-40368",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-04-18T15:12:26.532560Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-04-18T15:12:28.175Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unknown",
              "product": " SIMATIC S7-400 CPU 412-1 DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": " SIMATIC S7-400 CPU 412-2 DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": " SIMATIC S7-400 CPU 412-2 PN/DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions \u003c V7.0.3"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": " SIMATIC S7-400 CPU 414-2 DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": " SIMATIC S7-400 CPU 414-3 DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": " SIMATIC S7-400 CPU 414-3 PN/DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions \u003c V7.0.3"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": " SIMATIC S7-400 CPU 414F-3 PN/DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions \u003c V7.0.3"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": " SIMATIC S7-400 CPU 416-2 DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": " SIMATIC S7-400 CPU 416-3 DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": " SIMATIC S7-400 CPU 416-3 PN/DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions \u003c V7.0.3"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": " SIMATIC S7-400 CPU 416F-2 DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": " SIMATIC S7-400 CPU 416F-3 PN/DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions \u003c V7.0.3"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": " SIMATIC S7-400 CPU 417-4 DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": "SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions \u003c V6.0.10"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": "SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions \u003c V10.1"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": "SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions \u003c V8.2.3"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": "SIPLUS S7-400 CPU 414-3 PN/DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions \u003c V7.0.3"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": "SIPLUS S7-400 CPU 416-3 PN/DP V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions \u003c V7.0.3"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": "SIPLUS S7-400 CPU 416-3 V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions"
                }
              ]
            },
            {
              "defaultStatus": "unknown",
              "product": "SIPLUS S7-400 CPU 417-4 V7",
              "vendor": "Siemens",
              "versions": [
                {
                  "status": "affected",
                  "version": "All versions"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "A vulnerability has been identified in  SIMATIC S7-400 CPU 412-1 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 414-2 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 416-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 416F-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions \u003c V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions \u003c V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions \u003c V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.\n\nThis could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C",
                "version": "3.1"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-119",
                  "description": "CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2023-04-11T09:02:03.176Z",
            "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
            "shortName": "siemens"
          },
          "references": [
            {
              "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf"
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "assignerShortName": "siemens",
        "cveId": "CVE-2021-40368",
        "datePublished": "2022-04-12T09:07:23.000Z",
        "dateReserved": "2021-09-01T00:00:00.000Z",
        "dateUpdated": "2025-04-21T13:54:27.056Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    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.