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

CVE-2005-4900 (GCVE-0-2005-4900)

Vulnerability from cvelistv5 – Published: 2016-10-14 16:00 – Updated: 2026-05-22 16:18
VLAI
Summary
SHA-1 is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of SHA-1 in TLS 1.2. NOTE: this CVE exists to provide a common identifier for referencing this SHA-1 issue; the existence of an identifier is not, by itself, a technology recommendation.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-22 16:17 UTC
CWE
  • n/a
  • CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Assigner
References
Date Public
2005-02-15 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-08T00:01:23.514Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://sites.google.com/site/itstheshappening"
          },
          {
            "name": "12577",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/12577"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://shattered.io/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.schneier.com/blog/archives/2005/08/new_cryptanalyt.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://www.cwi.nl/news/2017/cwi-and-google-announce-first-collision-industry-security-standard-sha-1"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://ia.cr/2007/474"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://security.googleblog.com/2015/12/an-update-on-sha-1-certificates-in.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.schneier.com/blog/archives/2005/02/sha1_broken.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://arstechnica.com/security/2017/02/at-deaths-door-for-years-widely-used-sha1-function-is-now-dead/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10340"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.9,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2005-4900",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-22T16:17:39.588677Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-327",
                "description": "CWE-327 Use of a Broken or Risky Cryptographic Algorithm",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-22T16:18:17.909Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2005-02-15T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "SHA-1 is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of SHA-1 in TLS 1.2.  NOTE: this CVE exists to provide a common identifier for referencing this SHA-1 issue; the existence of an identifier is not, by itself, a technology recommendation."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-12-09T08:06:17.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://sites.google.com/site/itstheshappening"
        },
        {
          "name": "12577",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/12577"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://shattered.io/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.schneier.com/blog/archives/2005/08/new_cryptanalyt.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://www.cwi.nl/news/2017/cwi-and-google-announce-first-collision-industry-security-standard-sha-1"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://ia.cr/2007/474"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://security.googleblog.com/2015/12/an-update-on-sha-1-certificates-in.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.schneier.com/blog/archives/2005/02/sha1_broken.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://arstechnica.com/security/2017/02/at-deaths-door-for-years-widely-used-sha1-function-is-now-dead/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10340"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2005-4900",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "SHA-1 is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of SHA-1 in TLS 1.2.  NOTE: this CVE exists to provide a common identifier for referencing this SHA-1 issue; the existence of an identifier is not, by itself, a technology recommendation."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://sites.google.com/site/itstheshappening",
              "refsource": "MISC",
              "url": "https://sites.google.com/site/itstheshappening"
            },
            {
              "name": "12577",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/12577"
            },
            {
              "name": "http://shattered.io/",
              "refsource": "MISC",
              "url": "http://shattered.io/"
            },
            {
              "name": "https://www.schneier.com/blog/archives/2005/08/new_cryptanalyt.html",
              "refsource": "MISC",
              "url": "https://www.schneier.com/blog/archives/2005/08/new_cryptanalyt.html"
            },
            {
              "name": "http://www.cwi.nl/news/2017/cwi-and-google-announce-first-collision-industry-security-standard-sha-1",
              "refsource": "MISC",
              "url": "http://www.cwi.nl/news/2017/cwi-and-google-announce-first-collision-industry-security-standard-sha-1"
            },
            {
              "name": "http://ia.cr/2007/474",
              "refsource": "MISC",
              "url": "http://ia.cr/2007/474"
            },
            {
              "name": "https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html",
              "refsource": "MISC",
              "url": "https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html"
            },
            {
              "name": "https://security.googleblog.com/2015/12/an-update-on-sha-1-certificates-in.html",
              "refsource": "MISC",
              "url": "https://security.googleblog.com/2015/12/an-update-on-sha-1-certificates-in.html"
            },
            {
              "name": "https://www.schneier.com/blog/archives/2005/02/sha1_broken.html",
              "refsource": "MISC",
              "url": "https://www.schneier.com/blog/archives/2005/02/sha1_broken.html"
            },
            {
              "name": "https://arstechnica.com/security/2017/02/at-deaths-door-for-years-widely-used-sha1-function-is-now-dead/",
              "refsource": "MISC",
              "url": "https://arstechnica.com/security/2017/02/at-deaths-door-for-years-widely-used-sha1-function-is-now-dead/"
            },
            {
              "name": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10340",
              "refsource": "CONFIRM",
              "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10340"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2005-4900",
    "datePublished": "2016-10-14T16:00:00.000Z",
    "dateReserved": "2016-10-14T00:00:00.000Z",
    "dateUpdated": "2026-05-22T16:18:17.909Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2005-4900",
      "date": "2026-09-19",
      "epss": "0.00938",
      "percentile": "0.59355"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
                  "matchCriteriaId": "AFB52550-C3FC-4CDD-AA6E-500BD3304241",
                  "versionEndIncluding": "47.0.2526.111",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "SHA-1 is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of SHA-1 in TLS 1.2.  NOTE: this CVE exists to provide a common identifier for referencing this SHA-1 issue; the existence of an identifier is not, by itself, a technology recommendation."
        },
        {
          "lang": "es",
          "value": "SHA-1 no es resistente a la colisi\u00f3n, lo que facilita a atacantes dependientes del contexto llevar a cabo ataques de espionaje, como es demostrado por ataques en el uso de SHA-1 en TLS 1.2. NOTA: esta CVE existe para dar un identificador com\u00fan para referenciar este problema de SHA-1; la existencia de un identificador no es, en si misma, una recomendaci\u00f3n tecnol\u00f3gica."
        }
      ],
      "evaluatorComment": "SHA-1 is likely present in a large number of products across the entire IT sector. The applicability statement for this CVE will be updated when specific products are identified, as time and resources permit.",
      "id": "CVE-2005-4900",
      "lastModified": "2024-11-21T00:05:26.167",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "MEDIUM",
            "cvssData": {
              "accessComplexity": "MEDIUM",
              "accessVector": "NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "NONE",
              "baseScore": 4.3,
              "confidentialityImpact": "PARTIAL",
              "integrityImpact": "NONE",
              "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
              "version": "2.0"
            },
            "exploitabilityScore": 8.6,
            "impactScore": 2.9,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ],
        "cvssMetricV30": [
          {
            "cvssData": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.9,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
              "version": "3.0"
            },
            "exploitabilityScore": 2.2,
            "impactScore": 3.6,
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      },
      "published": "2016-10-14T16:59:00.187",
      "references": [
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://ia.cr/2007/474"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://shattered.io/"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://www.cwi.nl/news/2017/cwi-and-google-announce-first-collision-industry-security-standard-sha-1"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://www.securityfocus.com/bid/12577"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://arstechnica.com/security/2017/02/at-deaths-door-for-years-widely-used-sha1-function-is-now-dead/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10340"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://security.googleblog.com/2015/12/an-update-on-sha-1-certificates-in.html"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://sites.google.com/site/itstheshappening"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://www.schneier.com/blog/archives/2005/02/sha1_broken.html"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://www.schneier.com/blog/archives/2005/08/new_cryptanalyt.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "http://ia.cr/2007/474"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://shattered.io/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.cwi.nl/news/2017/cwi-and-google-announce-first-collision-industry-security-standard-sha-1"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.securityfocus.com/bid/12577"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://arstechnica.com/security/2017/02/at-deaths-door-for-years-widely-used-sha1-function-is-now-dead/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10340"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://security.googleblog.com/2015/12/an-update-on-sha-1-certificates-in.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://sites.google.com/site/itstheshappening"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://www.schneier.com/blog/archives/2005/02/sha1_broken.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Third Party Advisory"
          ],
          "url": "https://www.schneier.com/blog/archives/2005/08/new_cryptanalyt.html"
        }
      ],
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-326"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "AFB52550-C3FC-4CDD-AA6E-500BD3304241",
                    "versionEndIncluding": "47.0.2526.111",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "SHA-1 is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of SHA-1 in TLS 1.2.  NOTE: this CVE exists to provide a common identifier for referencing this SHA-1 issue; the existence of an identifier is not, by itself, a technology recommendation."
          },
          {
            "lang": "es",
            "value": "SHA-1 no es resistente a la colisi\u00f3n, lo que facilita a atacantes dependientes del contexto llevar a cabo ataques de espionaje, como es demostrado por ataques en el uso de SHA-1 en TLS 1.2. NOTA: esta CVE existe para dar un identificador com\u00fan para referenciar este problema de SHA-1; la existencia de un identificador no es, en si misma, una recomendaci\u00f3n tecnol\u00f3gica."
          }
        ],
        "evaluatorComment": "SHA-1 is likely present in a large number of products across the entire IT sector. The applicability statement for this CVE will be updated when specific products are identified, as time and resources permit.",
        "id": "CVE-2005-4900",
        "lastModified": "2026-05-06T22:30:45.220",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "MEDIUM",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 8.6,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "HIGH",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.9,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                "version": "3.0"
              },
              "exploitabilityScore": 2.2,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2016-10-14T16:59:00.187",
        "references": [
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://ia.cr/2007/474"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://shattered.io/"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.cwi.nl/news/2017/cwi-and-google-announce-first-collision-industry-security-standard-sha-1"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.securityfocus.com/bid/12577"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://arstechnica.com/security/2017/02/at-deaths-door-for-years-widely-used-sha1-function-is-now-dead/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10340"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.googleblog.com/2015/12/an-update-on-sha-1-certificates-in.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://sites.google.com/site/itstheshappening"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.schneier.com/blog/archives/2005/02/sha1_broken.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.schneier.com/blog/archives/2005/08/new_cryptanalyt.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "http://ia.cr/2007/474"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://shattered.io/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.cwi.nl/news/2017/cwi-and-google-announce-first-collision-industry-security-standard-sha-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/bid/12577"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://arstechnica.com/security/2017/02/at-deaths-door-for-years-widely-used-sha1-function-is-now-dead/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10340"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.googleblog.com/2015/12/an-update-on-sha-1-certificates-in.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://sites.google.com/site/itstheshappening"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.schneier.com/blog/archives/2005/02/sha1_broken.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.schneier.com/blog/archives/2005/08/new_cryptanalyt.html"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-326"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-09-06T00:04:38Z",
      "cve": "CVE-2005-4900",
      "id": "CVE-2005-4900",
      "initial_release_date": "2023-02-15T06:16:28Z",
      "product_status:known_affected": "130",
      "product_status:known_not_affected": "143",
      "product_status:recommended": "920",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2005-4900",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2005-4900.json",
      "version": "31"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-08T00:01:23.514Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://sites.google.com/site/itstheshappening"
              },
              {
                "name": "12577",
                "tags": [
                  "vdb-entry",
                  "x_refsource_BID",
                  "x_transferred"
                ],
                "url": "http://www.securityfocus.com/bid/12577"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "http://shattered.io/"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://www.schneier.com/blog/archives/2005/08/new_cryptanalyt.html"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "http://www.cwi.nl/news/2017/cwi-and-google-announce-first-collision-industry-security-standard-sha-1"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "http://ia.cr/2007/474"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://security.googleblog.com/2015/12/an-update-on-sha-1-certificates-in.html"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://www.schneier.com/blog/archives/2005/02/sha1_broken.html"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://arstechnica.com/security/2017/02/at-deaths-door-for-years-widely-used-sha1-function-is-now-dead/"
              },
              {
                "tags": [
                  "x_refsource_CONFIRM",
                  "x_transferred"
                ],
                "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10340"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "HIGH",
                  "attackVector": "NETWORK",
                  "availabilityImpact": "NONE",
                  "baseScore": 5.9,
                  "baseSeverity": "MEDIUM",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "NONE",
                  "privilegesRequired": "NONE",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2005-4900",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-05-22T16:17:39.588677Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-327",
                    "description": "CWE-327 Use of a Broken or Risky Cryptographic Algorithm",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-05-22T16:16:34.456Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "n/a",
              "vendor": "n/a",
              "versions": [
                {
                  "status": "affected",
                  "version": "n/a"
                }
              ]
            }
          ],
          "datePublic": "2005-02-15T00:00:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "value": "SHA-1 is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of SHA-1 in TLS 1.2.  NOTE: this CVE exists to provide a common identifier for referencing this SHA-1 issue; the existence of an identifier is not, by itself, a technology recommendation."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "description": "n/a",
                  "lang": "en",
                  "type": "text"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2020-12-09T08:06:17.000Z",
            "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
            "shortName": "mitre"
          },
          "references": [
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://sites.google.com/site/itstheshappening"
            },
            {
              "name": "12577",
              "tags": [
                "vdb-entry",
                "x_refsource_BID"
              ],
              "url": "http://www.securityfocus.com/bid/12577"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "http://shattered.io/"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://www.schneier.com/blog/archives/2005/08/new_cryptanalyt.html"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "http://www.cwi.nl/news/2017/cwi-and-google-announce-first-collision-industry-security-standard-sha-1"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "http://ia.cr/2007/474"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://security.googleblog.com/2015/12/an-update-on-sha-1-certificates-in.html"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://www.schneier.com/blog/archives/2005/02/sha1_broken.html"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://arstechnica.com/security/2017/02/at-deaths-door-for-years-widely-used-sha1-function-is-now-dead/"
            },
            {
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10340"
            }
          ],
          "x_legacyV4Record": {
            "CVE_data_meta": {
              "ASSIGNER": "cve@mitre.org",
              "ID": "CVE-2005-4900",
              "STATE": "PUBLIC"
            },
            "affects": {
              "vendor": {
                "vendor_data": [
                  {
                    "product": {
                      "product_data": [
                        {
                          "product_name": "n/a",
                          "version": {
                            "version_data": [
                              {
                                "version_value": "n/a"
                              }
                            ]
                          }
                        }
                      ]
                    },
                    "vendor_name": "n/a"
                  }
                ]
              }
            },
            "data_format": "MITRE",
            "data_type": "CVE",
            "data_version": "4.0",
            "description": {
              "description_data": [
                {
                  "lang": "eng",
                  "value": "SHA-1 is not collision resistant, which makes it easier for context-dependent attackers to conduct spoofing attacks, as demonstrated by attacks on the use of SHA-1 in TLS 1.2.  NOTE: this CVE exists to provide a common identifier for referencing this SHA-1 issue; the existence of an identifier is not, by itself, a technology recommendation."
                }
              ]
            },
            "problemtype": {
              "problemtype_data": [
                {
                  "description": [
                    {
                      "lang": "eng",
                      "value": "n/a"
                    }
                  ]
                }
              ]
            },
            "references": {
              "reference_data": [
                {
                  "name": "https://sites.google.com/site/itstheshappening",
                  "refsource": "MISC",
                  "url": "https://sites.google.com/site/itstheshappening"
                },
                {
                  "name": "12577",
                  "refsource": "BID",
                  "url": "http://www.securityfocus.com/bid/12577"
                },
                {
                  "name": "http://shattered.io/",
                  "refsource": "MISC",
                  "url": "http://shattered.io/"
                },
                {
                  "name": "https://www.schneier.com/blog/archives/2005/08/new_cryptanalyt.html",
                  "refsource": "MISC",
                  "url": "https://www.schneier.com/blog/archives/2005/08/new_cryptanalyt.html"
                },
                {
                  "name": "http://www.cwi.nl/news/2017/cwi-and-google-announce-first-collision-industry-security-standard-sha-1",
                  "refsource": "MISC",
                  "url": "http://www.cwi.nl/news/2017/cwi-and-google-announce-first-collision-industry-security-standard-sha-1"
                },
                {
                  "name": "http://ia.cr/2007/474",
                  "refsource": "MISC",
                  "url": "http://ia.cr/2007/474"
                },
                {
                  "name": "https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html",
                  "refsource": "MISC",
                  "url": "https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html"
                },
                {
                  "name": "https://security.googleblog.com/2015/12/an-update-on-sha-1-certificates-in.html",
                  "refsource": "MISC",
                  "url": "https://security.googleblog.com/2015/12/an-update-on-sha-1-certificates-in.html"
                },
                {
                  "name": "https://www.schneier.com/blog/archives/2005/02/sha1_broken.html",
                  "refsource": "MISC",
                  "url": "https://www.schneier.com/blog/archives/2005/02/sha1_broken.html"
                },
                {
                  "name": "https://arstechnica.com/security/2017/02/at-deaths-door-for-years-widely-used-sha1-function-is-now-dead/",
                  "refsource": "MISC",
                  "url": "https://arstechnica.com/security/2017/02/at-deaths-door-for-years-widely-used-sha1-function-is-now-dead/"
                },
                {
                  "name": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10340",
                  "refsource": "CONFIRM",
                  "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10340"
                }
              ]
            }
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "cveId": "CVE-2005-4900",
        "datePublished": "2016-10-14T16:00:00.000Z",
        "dateReserved": "2016-10-14T00:00:00.000Z",
        "dateUpdated": "2026-05-22T16:18:17.909Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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

Sightings

Author Source Type Date Other

Nomenclature

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


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.