CVE-2022-40735 (GCVE-0-2022-40735)

Vulnerability from cvelistv5 – Published: 2022-11-14 00:00 – Updated: 2024-08-03 12:28
VLAI
Summary
The Diffie-Hellman Key Agreement Protocol allows use of long exponents that arguably make certain calculations unnecessarily expensive, because the 1996 van Oorschot and Wiener paper found that "(appropriately) short exponents" can be used when there are adequate subgroup constraints, and these short exponents can lead to less expensive calculations than for long exponents. This issue is different from CVE-2002-20001 because it is based on an observation about exponent size, rather than an observation about numbers that are not public keys. The specific situations in which calculation expense would constitute a server-side vulnerability depend on the protocol (e.g., TLS, SSH, or IKE) and the DHE implementation details. In general, there might be an availability concern because of server-side resource consumption from DHE modular-exponentiation calculations. Finally, it is possible for an attacker to exploit this vulnerability and CVE-2002-20001 together.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2132 records in the last 180 days details
References
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T12:28:41.552Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/mozilla/ssl-config-generator/issues/162"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://gist.github.com/c0r0n3r/9455ddcab985c50fd1912eabf26e058b"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://link.springer.com/content/pdf/10.1007/3-540-68339-9_29.pdf"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol/links/546c144f0cf20dedafd53e7e/Security-Issues-in-the-Diffie-Hellman-Key-Agreement-Protocol.pdf"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-57pt1r5.pdf"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.rfc-editor.org/rfc/rfc4419"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.rfc-editor.org/rfc/rfc5114#section-4"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.rfc-editor.org/rfc/rfc7919#section-5.2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://raw.githubusercontent.com/CVEProject/cvelist/9d7fbbcabd3f44cfedc9e8807757d31ece85a2c6/2022/40xxx/CVE-2022-40735.json"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.rfc-editor.org/rfc/rfc3526"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://dheatattack.gitlab.io/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://ieeexplore.ieee.org/document/10374117"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Diffie-Hellman Key Agreement Protocol allows use of long exponents that arguably make certain calculations unnecessarily expensive, because the 1996 van Oorschot and Wiener paper found that \"(appropriately) short exponents\" can be used when there are adequate subgroup constraints, and these short exponents can lead to less expensive calculations than for long exponents. This issue is different from CVE-2002-20001 because it is based on an observation about exponent size, rather than an observation about numbers that are not public keys. The specific situations in which calculation expense would constitute a server-side vulnerability depend on the protocol (e.g., TLS, SSH, or IKE) and the DHE implementation details. In general, there might be an availability concern because of server-side resource consumption from DHE modular-exponentiation calculations. Finally, it is possible for an attacker to exploit this vulnerability and CVE-2002-20001 together."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-04-23T06:49:41.370Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/mozilla/ssl-config-generator/issues/162"
        },
        {
          "url": "https://gist.github.com/c0r0n3r/9455ddcab985c50fd1912eabf26e058b"
        },
        {
          "url": "https://link.springer.com/content/pdf/10.1007/3-540-68339-9_29.pdf"
        },
        {
          "url": "https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol/links/546c144f0cf20dedafd53e7e/Security-Issues-in-the-Diffie-Hellman-Key-Agreement-Protocol.pdf"
        },
        {
          "url": "https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-57pt1r5.pdf"
        },
        {
          "url": "https://www.rfc-editor.org/rfc/rfc4419"
        },
        {
          "url": "https://www.rfc-editor.org/rfc/rfc5114#section-4"
        },
        {
          "url": "https://www.rfc-editor.org/rfc/rfc7919#section-5.2"
        },
        {
          "url": "https://raw.githubusercontent.com/CVEProject/cvelist/9d7fbbcabd3f44cfedc9e8807757d31ece85a2c6/2022/40xxx/CVE-2022-40735.json"
        },
        {
          "url": "https://www.rfc-editor.org/rfc/rfc3526"
        },
        {
          "url": "https://dheatattack.gitlab.io/"
        },
        {
          "url": "https://ieeexplore.ieee.org/document/10374117"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2022-40735",
    "datePublished": "2022-11-14T00:00:00.000Z",
    "dateReserved": "2022-09-15T00:00:00.000Z",
    "dateUpdated": "2024-08-03T12:28:41.552Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-40735",
      "date": "2026-11-14",
      "epss": "0.03553",
      "percentile": "0.89503"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:diffie-hellman_key_exchange_project:diffie-hellman_key_exchange:-:*:*:*:*:*:*:*",
                  "matchCriteriaId": "43F56DA8-0635-41E8-B91C-485695B587AD",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Diffie-Hellman Key Agreement Protocol allows use of long exponents that arguably make certain calculations unnecessarily expensive, because the 1996 van Oorschot and Wiener paper found that \"(appropriately) short exponents\" can be used when there are adequate subgroup constraints, and these short exponents can lead to less expensive calculations than for long exponents. This issue is different from CVE-2002-20001 because it is based on an observation about exponent size, rather than an observation about numbers that are not public keys. The specific situations in which calculation expense would constitute a server-side vulnerability depend on the protocol (e.g., TLS, SSH, or IKE) and the DHE implementation details. In general, there might be an availability concern because of server-side resource consumption from DHE modular-exponentiation calculations. Finally, it is possible for an attacker to exploit this vulnerability and CVE-2002-20001 together."
        },
        {
          "lang": "es",
          "value": "Diffie-Hellman Key Agreement Protocol permite el uso de exponentes largos que posiblemente hacen que ciertos c\u00e1lculos sean innecesariamente costosos, porque el art\u00edculo de van Oorschot y Wiener de 1996 encontr\u00f3 que se pueden usar \"exponentes (apropiadamente) cortos\" cuando existen restricciones de subgrupo adecuadas, y estos exponentes cortos pueden conducir a c\u00e1lculos menos costosos que los de exponentes largos. Este problema es diferente de CVE-2002-20001, porque se basa en una observaci\u00f3n sobre el tama\u00f1o del exponente, en lugar de una observaci\u00f3n sobre n\u00fameros que no son claves p\u00fablicas. Las situaciones espec\u00edficas en las que el gasto de c\u00e1lculo constituir\u00eda una vulnerabilidad del lado del servidor dependen del protocolo (por ejemplo, TLS, SSH o IKE) y los detalles de implementaci\u00f3n de DHE. En general, puede haber un problema de disponibilidad debido al consumo de recursos del lado del servidor a partir de los c\u00e1lculos de exponenciaci\u00f3n modular de DHE. Finalmente, es posible que un atacante aproveche esta vulnerabilidad y CVE-2002-20001 juntos."
        }
      ],
      "id": "CVE-2022-40735",
      "lastModified": "2024-11-21T07:21:56.900",
      "metrics": {
        "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": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2022-11-14T23:15:11.423",
      "references": [
        {
          "source": "cve@mitre.org",
          "url": "https://dheatattack.gitlab.io/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://gist.github.com/c0r0n3r/9455ddcab985c50fd1912eabf26e058b"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Issue Tracking",
            "Third Party Advisory"
          ],
          "url": "https://github.com/mozilla/ssl-config-generator/issues/162"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://ieeexplore.ieee.org/document/10374117"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Technical Description",
            "Third Party Advisory"
          ],
          "url": "https://link.springer.com/content/pdf/10.1007/3-540-68339-9_29.pdf"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Technical Description",
            "Third Party Advisory",
            "US Government Resource"
          ],
          "url": "https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-57pt1r5.pdf"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://raw.githubusercontent.com/CVEProject/cvelist/9d7fbbcabd3f44cfedc9e8807757d31ece85a2c6/2022/40xxx/CVE-2022-40735.json"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Technical Description",
            "Third Party Advisory"
          ],
          "url": "https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol/links/546c144f0cf20dedafd53e7e/Security-Issues-in-the-Diffie-Hellman-Key-Agreement-Protocol.pdf"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://www.rfc-editor.org/rfc/rfc3526"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://www.rfc-editor.org/rfc/rfc4419"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://www.rfc-editor.org/rfc/rfc5114#section-4"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://www.rfc-editor.org/rfc/rfc7919#section-5.2"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://dheatattack.gitlab.io/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://gist.github.com/c0r0n3r/9455ddcab985c50fd1912eabf26e058b"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Issue Tracking",
            "Third Party Advisory"
          ],
          "url": "https://github.com/mozilla/ssl-config-generator/issues/162"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://ieeexplore.ieee.org/document/10374117"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Technical Description",
            "Third Party Advisory"
          ],
          "url": "https://link.springer.com/content/pdf/10.1007/3-540-68339-9_29.pdf"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Technical Description",
            "Third Party Advisory",
            "US Government Resource"
          ],
          "url": "https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-57pt1r5.pdf"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://raw.githubusercontent.com/CVEProject/cvelist/9d7fbbcabd3f44cfedc9e8807757d31ece85a2c6/2022/40xxx/CVE-2022-40735.json"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Technical Description",
            "Third Party Advisory"
          ],
          "url": "https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol/links/546c144f0cf20dedafd53e7e/Security-Issues-in-the-Diffie-Hellman-Key-Agreement-Protocol.pdf"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://www.rfc-editor.org/rfc/rfc3526"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://www.rfc-editor.org/rfc/rfc4419"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://www.rfc-editor.org/rfc/rfc5114#section-4"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://www.rfc-editor.org/rfc/rfc7919#section-5.2"
        }
      ],
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-400"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "n/a",
                "vendor": "n/a",
                "versions": [
                  {
                    "status": "affected",
                    "version": "n/a"
                  }
                ]
              }
            ],
            "source": "cve@mitre.org"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:diffie-hellman_key_exchange_project:diffie-hellman_key_exchange:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "43F56DA8-0635-41E8-B91C-485695B587AD",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The Diffie-Hellman Key Agreement Protocol allows use of long exponents that arguably make certain calculations unnecessarily expensive, because the 1996 van Oorschot and Wiener paper found that \"(appropriately) short exponents\" can be used when there are adequate subgroup constraints, and these short exponents can lead to less expensive calculations than for long exponents. This issue is different from CVE-2002-20001 because it is based on an observation about exponent size, rather than an observation about numbers that are not public keys. The specific situations in which calculation expense would constitute a server-side vulnerability depend on the protocol (e.g., TLS, SSH, or IKE) and the DHE implementation details. In general, there might be an availability concern because of server-side resource consumption from DHE modular-exponentiation calculations. Finally, it is possible for an attacker to exploit this vulnerability and CVE-2002-20001 together."
          },
          {
            "lang": "es",
            "value": "Diffie-Hellman Key Agreement Protocol permite el uso de exponentes largos que posiblemente hacen que ciertos c\u00e1lculos sean innecesariamente costosos, porque el art\u00edculo de van Oorschot y Wiener de 1996 encontr\u00f3 que se pueden usar \"exponentes (apropiadamente) cortos\" cuando existen restricciones de subgrupo adecuadas, y estos exponentes cortos pueden conducir a c\u00e1lculos menos costosos que los de exponentes largos. Este problema es diferente de CVE-2002-20001, porque se basa en una observaci\u00f3n sobre el tama\u00f1o del exponente, en lugar de una observaci\u00f3n sobre n\u00fameros que no son claves p\u00fablicas. Las situaciones espec\u00edficas en las que el gasto de c\u00e1lculo constituir\u00eda una vulnerabilidad del lado del servidor dependen del protocolo (por ejemplo, TLS, SSH o IKE) y los detalles de implementaci\u00f3n de DHE. En general, puede haber un problema de disponibilidad debido al consumo de recursos del lado del servidor a partir de los c\u00e1lculos de exponenciaci\u00f3n modular de DHE. Finalmente, es posible que un atacante aproveche esta vulnerabilidad y CVE-2002-20001 juntos."
          }
        ],
        "id": "CVE-2022-40735",
        "lastModified": "2026-06-17T05:01:56.980",
        "metrics": {
          "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": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2022-11-14T23:15:11.423",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "https://dheatattack.gitlab.io/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://gist.github.com/c0r0n3r/9455ddcab985c50fd1912eabf26e058b"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Issue Tracking",
              "Third Party Advisory"
            ],
            "url": "https://github.com/mozilla/ssl-config-generator/issues/162"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://ieeexplore.ieee.org/document/10374117"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Technical Description",
              "Third Party Advisory"
            ],
            "url": "https://link.springer.com/content/pdf/10.1007/3-540-68339-9_29.pdf"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Technical Description",
              "Third Party Advisory",
              "US Government Resource"
            ],
            "url": "https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-57pt1r5.pdf"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://raw.githubusercontent.com/CVEProject/cvelist/9d7fbbcabd3f44cfedc9e8807757d31ece85a2c6/2022/40xxx/CVE-2022-40735.json"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Technical Description",
              "Third Party Advisory"
            ],
            "url": "https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol/links/546c144f0cf20dedafd53e7e/Security-Issues-in-the-Diffie-Hellman-Key-Agreement-Protocol.pdf"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://www.rfc-editor.org/rfc/rfc3526"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://www.rfc-editor.org/rfc/rfc4419"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://www.rfc-editor.org/rfc/rfc5114#section-4"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://www.rfc-editor.org/rfc/rfc7919#section-5.2"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://dheatattack.gitlab.io/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://gist.github.com/c0r0n3r/9455ddcab985c50fd1912eabf26e058b"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking",
              "Third Party Advisory"
            ],
            "url": "https://github.com/mozilla/ssl-config-generator/issues/162"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://ieeexplore.ieee.org/document/10374117"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Technical Description",
              "Third Party Advisory"
            ],
            "url": "https://link.springer.com/content/pdf/10.1007/3-540-68339-9_29.pdf"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Technical Description",
              "Third Party Advisory",
              "US Government Resource"
            ],
            "url": "https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-57pt1r5.pdf"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://raw.githubusercontent.com/CVEProject/cvelist/9d7fbbcabd3f44cfedc9e8807757d31ece85a2c6/2022/40xxx/CVE-2022-40735.json"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Technical Description",
              "Third Party Advisory"
            ],
            "url": "https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol/links/546c144f0cf20dedafd53e7e/Security-Issues-in-the-Diffie-Hellman-Key-Agreement-Protocol.pdf"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.rfc-editor.org/rfc/rfc3526"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.rfc-editor.org/rfc/rfc4419"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.rfc-editor.org/rfc/rfc5114#section-4"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.rfc-editor.org/rfc/rfc7919#section-5.2"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-400"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "current_release_date": "2026-03-27T11:59:15+00:00",
      "cve": "CVE-2022-40735",
      "id": "CVE-2022-40735",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CVE-2022-40735",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-40735.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-11-01T03:27:13Z",
      "cve": "CVE-2022-40735",
      "id": "CVE-2022-40735",
      "initial_release_date": "2023-02-15T03:23:35Z",
      "product_status:known_affected": "0",
      "product_status:known_not_affected": "704",
      "product_status:recommended": "33",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-40735",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2023/cve-2022-40735.json",
      "version": "19"
    }
  }
}



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
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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.