GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2021-31893 (GCVE-0-2021-31893)

Vulnerability from cvelistv5 – Published: 2021-07-13 11:02 – Updated: 2024-08-03 23:10
VLAI
Summary
A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:10:30.646Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "SIMATIC PCS 7 V8.2 and earlier",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        },
        {
          "product": "SIMATIC PCS 7 V9.0",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V9.0 SP3"
            }
          ]
        },
        {
          "product": "SIMATIC PDM",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V9.2"
            }
          ]
        },
        {
          "product": "SIMATIC STEP 7 V5.X",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V5.6 SP2 HF3"
            }
          ]
        },
        {
          "product": "SINAMICS STARTER (containing STEP 7 OEM version)",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V5.4 HF2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions \u003c V9.0 SP3), SIMATIC PDM (All versions \u003c V9.2), SIMATIC STEP 7 V5.X (All versions \u003c V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions \u003c V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-120",
              "description": "CWE-120: Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-07-13T11:02:56.000Z",
        "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "shortName": "siemens"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "productcert@siemens.com",
          "ID": "CVE-2021-31893",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "SIMATIC PCS 7 V8.2 and earlier",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "All versions"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "SIMATIC PCS 7 V9.0",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "All versions \u003c V9.0 SP3"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "SIMATIC PDM",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "All versions \u003c V9.2"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "SIMATIC STEP 7 V5.X",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "All versions \u003c V5.6 SP2 HF3"
                          }
                        ]
                      }
                    },
                    {
                      "product_name": "SINAMICS STARTER (containing STEP 7 OEM version)",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "All versions \u003c V5.4 HF2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Siemens"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions \u003c V9.0 SP3), SIMATIC PDM (All versions \u003c V9.2), SIMATIC STEP 7 V5.X (All versions \u003c V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions \u003c V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-120: Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf",
              "refsource": "MISC",
              "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
    "assignerShortName": "siemens",
    "cveId": "CVE-2021-31893",
    "datePublished": "2021-07-13T11:02:56.000Z",
    "dateReserved": "2021-04-29T00:00:00.000Z",
    "dateUpdated": "2024-08-03T23:10:30.646Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-31893",
      "date": "2026-09-18",
      "epss": "0.00563",
      "percentile": "0.45549"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:siemens:simatic_pcs_firmware:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "7EEA55DF-23A5-4D3D-A2EC-EFFFBD8A7C3F",
                  "versionEndIncluding": "8.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:-:*:*:*:*:*:*",
                  "matchCriteriaId": "81FDDB73-5C1A-448E-A88E-835F04DB8444",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:sp1:*:*:*:*:*:*",
                  "matchCriteriaId": "39CC2ACC-62C3-434D-AB36-B73CA7CD5935",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:sp2:*:*:*:*:*:*",
                  "matchCriteriaId": "D6FE8718-AC43-4AD8-9226-2382CB588F7F",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:h:siemens:simatic_pcs:-:*:*:*:*:*:*:*",
                  "matchCriteriaId": "5BEAC421-FE31-4F16-8DB1-B816FDD66D64",
                  "vulnerable": false
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "AND"
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:siemens:simatic_pdm_firmware:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "FCE0E117-5AB1-4D65-84CA-1F4A48664C93",
                  "versionEndExcluding": "9.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:h:siemens:simatic_pdm:-:*:*:*:*:*:*:*",
                  "matchCriteriaId": "E092B735-42D5-48D5-947B-288C0FA2E180",
                  "vulnerable": false
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "AND"
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:siemens:simatic_step_7_firmware:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "06CA9ADA-EEEA-4655-93FA-11EF309D869B",
                  "versionEndIncluding": "5.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:h:siemens:simatic_step_7:-:*:*:*:*:*:*:*",
                  "matchCriteriaId": "FB1FE00B-0613-4819-8D50-A5A0B6A190D1",
                  "vulnerable": false
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "AND"
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:siemens:sinamics_starter_firmware:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "ACF25F6B-8DC4-4835-AE2F-2E03D3FA4C8C",
                  "versionEndExcluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:-:*:*:*:*:*:*",
                  "matchCriteriaId": "4D01AB88-A23C-4105-9D5C-DEAA8C2AAFE9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hotfix_1:*:*:*:*:*:*",
                  "matchCriteriaId": "C803017D-BCE6-4638-A54F-D29CA8AE5ABC",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hotfix_2:*:*:*:*:*:*",
                  "matchCriteriaId": "A5900915-29CC-4F36-9622-4E81038CE932",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            },
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:h:siemens:sinamics_starter:-:*:*:*:*:*:*:*",
                  "matchCriteriaId": "C3E8B354-CB0D-40F1-BC2B-C2355974C2A9",
                  "vulnerable": false
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "AND"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions \u003c V9.0 SP3), SIMATIC PDM (All versions \u003c V9.2), SIMATIC STEP 7 V5.X (All versions \u003c V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions \u003c V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution."
        },
        {
          "lang": "es",
          "value": "Se ha identificado una vulnerabilidad en SIMATIC PCS 7 versiones V8.2 y anteriores (Todas las versiones), SIMATIC PCS 7  versiones V9.0 (Todas las versiones anteriores a V9.0 SP3), SIMATIC PDM (Todas las versiones anteriores a V9.2), SIMATIC STEP 7  versiones V5.X (Todas las versiones anteriores a V5.6 SP2 HF3), SINAMICS STARTER (que contiene la versi\u00f3n OEM de STEP 7) (Todas las versiones anteriores a V5.4 HF2). El software afectado contiene una vulnerabilidad de desbordamiento de b\u00fafer mientras se manejan determinados archivos que podr\u00eda permitir a un atacante local desencadenar una condici\u00f3n de denegaci\u00f3n de servicio o potencialmente conllevar a una ejecuci\u00f3n de c\u00f3digo remota"
        }
      ],
      "id": "CVE-2021-31893",
      "lastModified": "2024-11-21T06:06:26.987",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "HIGH",
            "cvssData": {
              "accessComplexity": "LOW",
              "accessVector": "LOCAL",
              "authentication": "NONE",
              "availabilityImpact": "COMPLETE",
              "baseScore": 7.2,
              "confidentialityImpact": "COMPLETE",
              "integrityImpact": "COMPLETE",
              "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
              "version": "2.0"
            },
            "exploitabilityScore": 3.9,
            "impactScore": 10.0,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 1.8,
            "impactScore": 5.9,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2021-07-13T11:15:09.527",
      "references": [
        {
          "source": "productcert@siemens.com",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch",
            "Vendor Advisory"
          ],
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf"
        }
      ],
      "sourceIdentifier": "productcert@siemens.com",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-120"
            }
          ],
          "source": "productcert@siemens.com",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:siemens:simatic_pcs_firmware:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7EEA55DF-23A5-4D3D-A2EC-EFFFBD8A7C3F",
                    "versionEndIncluding": "8.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:-:*:*:*:*:*:*",
                    "matchCriteriaId": "81FDDB73-5C1A-448E-A88E-835F04DB8444",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:sp1:*:*:*:*:*:*",
                    "matchCriteriaId": "39CC2ACC-62C3-434D-AB36-B73CA7CD5935",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:sp2:*:*:*:*:*:*",
                    "matchCriteriaId": "D6FE8718-AC43-4AD8-9226-2382CB588F7F",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:h:siemens:simatic_pcs:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5BEAC421-FE31-4F16-8DB1-B816FDD66D64",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:siemens:simatic_pdm_firmware:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FCE0E117-5AB1-4D65-84CA-1F4A48664C93",
                    "versionEndExcluding": "9.2",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:h:siemens:simatic_pdm:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E092B735-42D5-48D5-947B-288C0FA2E180",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:siemens:simatic_step_7_firmware:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "06CA9ADA-EEEA-4655-93FA-11EF309D869B",
                    "versionEndIncluding": "5.6",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:h:siemens:simatic_step_7:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FB1FE00B-0613-4819-8D50-A5A0B6A190D1",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:siemens:sinamics_starter_firmware:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "ACF25F6B-8DC4-4835-AE2F-2E03D3FA4C8C",
                    "versionEndExcluding": "5.4",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:-:*:*:*:*:*:*",
                    "matchCriteriaId": "4D01AB88-A23C-4105-9D5C-DEAA8C2AAFE9",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hotfix_1:*:*:*:*:*:*",
                    "matchCriteriaId": "C803017D-BCE6-4638-A54F-D29CA8AE5ABC",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hotfix_2:*:*:*:*:*:*",
                    "matchCriteriaId": "A5900915-29CC-4F36-9622-4E81038CE932",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:h:siemens:sinamics_starter:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C3E8B354-CB0D-40F1-BC2B-C2355974C2A9",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions \u003c V9.0 SP3), SIMATIC PDM (All versions \u003c V9.2), SIMATIC STEP 7 V5.X (All versions \u003c V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions \u003c V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution."
          },
          {
            "lang": "es",
            "value": "Se ha identificado una vulnerabilidad en SIMATIC PCS 7 versiones V8.2 y anteriores (Todas las versiones), SIMATIC PCS 7  versiones V9.0 (Todas las versiones anteriores a V9.0 SP3), SIMATIC PDM (Todas las versiones anteriores a V9.2), SIMATIC STEP 7  versiones V5.X (Todas las versiones anteriores a V5.6 SP2 HF3), SINAMICS STARTER (que contiene la versi\u00f3n OEM de STEP 7) (Todas las versiones anteriores a V5.4 HF2). El software afectado contiene una vulnerabilidad de desbordamiento de b\u00fafer mientras se manejan determinados archivos que podr\u00eda permitir a un atacante local desencadenar una condici\u00f3n de denegaci\u00f3n de servicio o potencialmente conllevar a una ejecuci\u00f3n de c\u00f3digo remota"
          }
        ],
        "id": "CVE-2021-31893",
        "lastModified": "2024-11-21T06:06:26.987",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "HIGH",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 7.2,
                "confidentialityImpact": "COMPLETE",
                "integrityImpact": "COMPLETE",
                "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 10.0,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2021-07-13T11:15:09.527",
        "references": [
          {
            "source": "productcert@siemens.com",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf"
          }
        ],
        "sourceIdentifier": "productcert@siemens.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-120"
              }
            ],
            "source": "productcert@siemens.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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.


Detection rules are retrieved from Rulezet.


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.