November 13, 2026 Follow Egret
CVE-2012-4792 · CVE record: PUBLISHED

Microsoft Internet Explorer Use-After-Free Vulnerability

n/a n/a

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly allocated or (2) is deleted, as demonstrated by a CDwnBindInfo object, and exploited in the wild in December 2012.

Exploitation evidence

Known exploited · CISA KEV listed

Added 2024-07-23. Ransomware campaign use: Unknown.

CISA required action: The impacted product is end-of-life and should be disconnected if still in use.

CISA due date: 2024-08-13. This is the catalog’s deadline, not an assessment of your organization’s exposure.

KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗

Reported products and versions

n/a / n/a

Default status: Not specified

  • affected: n/a

Fixes and workarounds

No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.

Sources and related reporting

CVE Program record ↗ · Download tracked evidence as JSON

Observed change timeline

History begins when Egret first downloads each source. It is not the complete upstream CVE history.

12 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-12",
  "epss": 0.78823,
  "percentile": 0.99598
}
10 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-10",
  "epss": 0.78823,
  "percentile": 0.99595
}
09 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-09",
  "epss": 0.78823,
  "percentile": 0.99594
}
08 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-08",
  "epss": 0.78823,
  "percentile": 0.99594
}
08 Nov 2026, 00:20 Jerusalem · CVE Program record changed

Stored CNA snapshot at this observation.

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:microsoft:ie:6.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "ie",
            "vendor": "microsoft",
            "versions": [
              {
                "lessThanOrEqual": "8.0",
                "status": "affected",
                "version": "6.0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 8.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2012-4792",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-23T03:55:54.304184Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2024-07-23",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-4792"
              },
              "type": "kev"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-22T00:05:45.500Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-4792"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2024-07-23T00:00:00.000Z",
            "value": "CVE-2012-4792 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T20:50:16.917Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "TA13-008A",
            "tags": [
              "third-party-advisory",
              "x_refsource_CERT",
              "x_transferred"
            ],
            "url": "http://www.us-cert.gov/cas/techalerts/TA13-008A.html"
          },
          {
            "name": "MS13-008",
            "tags": [
              "vendor-advisory",
              "x_refsource_MS",
              "x_transferred"
            ],
            "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-008"
          },
          {
            "name": "VU#154201",
            "tags": [
              "third-party-advisory",
              "x_refsource_CERT-VN",
              "x_transferred"
            ],
            "url": "http://www.kb.cert.org/vuls/id/154201"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ie_cbutton_uaf.rb"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://labs.alienvault.com/labs/index.php/2012/just-another-water-hole-campaign-using-an-internet-explorer-0day/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/119168/Microsoft-Internet-Explorer-CDwnBindInfo-Object-Use-After-Free.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://eromang.zataz.com/2012/12/29/attack-and-ie-0day-informations-used-against-council-on-foreign-relations/"
          },
          {
            "name": "oval:org.mitre.oval:def:16361",
            "tags": [
              "vdb-entry",
              "signature",
              "x_refsource_OVAL",
              "x_transferred"
            ],
            "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16361"
          },
          {
            "name": "TA13-015A",
            "tags": [
              "third-party-advisory",
              "x_refsource_CERT",
              "x_transferred"
            ],
            "url": "http://www.us-cert.gov/cas/techalerts/TA13-015A.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://blog.fireeye.com/research/2012/12/council-foreign-relations-water-hole-attack-details.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://blogs.technet.com/b/srd/archive/2012/12/29/new-vulnerability-affecting-internet-explorer-8-users.aspx"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://technet.microsoft.com/security/advisory/2794220"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://blogs.technet.com/b/srd/archive/2012/12/31/microsoft-quot-fix-it-quot-available-for-internet-explorer-6-7-and-8.aspx"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2012-12-29T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly allocated or (2) is deleted, as demonstrated by a CDwnBindInfo object, and exploited in the wild in December 2012."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-10-12T19:57:01.000Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": "TA13-008A",
          "tags": [
            "third-party-advisory",
            "x_refsource_CERT"
          ],
          "url": "http://www.us-cert.gov/cas/techalerts/TA13-008A.html"
        },
        {
          "name": "MS13-008",
          "tags": [
            "vendor-advisory",
            "x_refsource_MS"
          ],
          "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-008"
        },
        {
          "name": "VU#154201",
          "tags": [
            "third-party-advisory",
            "x_refsource_CERT-VN"
          ],
          "url": "http://www.kb.cert.org/vuls/id/154201"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ie_cbutton_uaf.rb"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://labs.alienvault.com/labs/index.php/2012/just-another-water-hole-campaign-using-an-internet-explorer-0day/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/119168/Microsoft-Internet-Explorer-CDwnBindInfo-Object-Use-After-Free.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://eromang.zataz.com/2012/12/29/attack-and-ie-0day-informations-used-against-council-on-foreign-relations/"
        },
        {
          "name": "oval:org.mitre.oval:def:16361",
          "tags": [
            "vdb-entry",
            "signature",
            "x_refsource_OVAL"
          ],
          "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16361"
        },
        {
          "name": "TA13-015A",
          "tags": [
            "third-party-advisory",
            "x_refsource_CERT"
          ],
          "url": "http://www.us-cert.gov/cas/techalerts/TA13-015A.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://blog.fireeye.com/research/2012/12/council-foreign-relations-water-hole-attack-details.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://blogs.technet.com/b/srd/archive/2012/12/29/new-vulnerability-affecting-internet-explorer-8-users.aspx"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://technet.microsoft.com/security/advisory/2794220"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://blogs.technet.com/b/srd/archive/2012/12/31/microsoft-quot-fix-it-quot-available-for-internet-explorer-6-7-and-8.aspx"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "secure@microsoft.com",
          "ID": "CVE-2012-4792",
          "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": "Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly allocated or (2) is deleted, as demonstrated by a CDwnBindInfo object, and exploited in the wild in December 2012."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "TA13-008A",
              "refsource": "CERT",
              "url": "http://www.us-cert.gov/cas/techalerts/TA13-008A.html"
            },
            {
              "name": "MS13-008",
              "refsource": "MS",
              "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-008"
            },
            {
              "name": "VU#154201",
              "refsource": "CERT-VN",
              "url": "http://www.kb.cert.org/vuls/id/154201"
            },
            {
              "name": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ie_cbutton_uaf.rb",
              "refsource": "MISC",
              "url": "https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/ie_cbutton_uaf.rb"
            },
            {
              "name": "http://labs.alienvault.com/labs/index.php/2012/just-another-water-hole-campaign-using-an-internet-explorer-0day/",
              "refsource": "MISC",
              "url": "http://labs.alienvault.com/labs/index.php/2012/just-another-water-hole-campaign-using-an-internet-explorer-0day/"
            },
            {
              "name": "http://packetstormsecurity.com/files/119168/Microsoft-Internet-Explorer-CDwnBindInfo-Object-Use-After-Free.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/119168/Microsoft-Internet-Explorer-CDwnBindInfo-Object-Use-After-Free.html"
            },
            {
              "name": "http://eromang.zataz.com/2012/12/29/attack-and-ie-0day-informations-used-against-council-on-foreign-relations/",
              "refsource": "MISC",
              "url": "http://eromang.zataz.com/2012/12/29/attack-and-ie-0day-informations-used-against-council-on-foreign-relations/"
            },
            {
              "name": "oval:org.mitre.oval:def:16361",
              "refsource": "OVAL",
              "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16361"
            },
            {
              "name": "TA13-015A",
              "refsource": "CERT",
              "url": "http://www.us-cert.gov/cas/techalerts/TA13-015A.html"
            },
            {
              "name": "http://blog.fireeye.com/research/2012/12/council-foreign-relations-water-hole-attack-details.html",
              "refsource": "MISC",
              "url": "http://blog.fireeye.com/research/2012/12/council-foreign-relations-water-hole-attack-details.html"
            },
            {
              "name": "http://blogs.technet.com/b/srd/archive/2012/12/29/new-vulnerability-affecting-internet-explorer-8-users.aspx",
              "refsource": "CONFIRM",
              "url": "http://blogs.technet.com/b/srd/archive/2012/12/29/new-vulnerability-affecting-internet-explorer-8-users.aspx"
            },
            {
              "name": "http://technet.microsoft.com/security/advisory/2794220",
              "refsource": "CONFIRM",
              "url": "http://technet.microsoft.com/security/advisory/2794220"
            },
            {
              "name": "http://blogs.technet.com/b/srd/archive/2012/12/31/microsoft-quot-fix-it-quot-available-for-internet-explorer-6-7-and-8.aspx",
              "refsource": "CONFIRM",
              "url": "http://blogs.technet.com/b/srd/archive/2012/12/31/microsoft-quot-fix-it-quot-available-for-internet-explorer-6-7-and-8.aspx"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2012-4792",
    "datePublished": "2012-12-30T18:00:00.000Z",
    "dateReserved": "2012-09-06T00:00:00.000Z",
    "dateUpdated": "2025-10-22T00:05:45.500Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}
07 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-07",
  "epss": 0.78823,
  "percentile": 0.99594
}
06 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-06",
  "epss": 0.78823,
  "percentile": 0.99594
}
05 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-05",
  "epss": 0.78823,
  "percentile": 0.99593
}
04 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-04",
  "epss": 0.78823,
  "percentile": 0.99592
}
03 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-03",
  "epss": 0.78823,
  "percentile": 0.99592
}
03 Nov 2026, 02:22 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-02",
  "epss": 0.78823,
  "percentile": 0.99591
}
03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed

Stored KEV snapshot at this observation.

{
  "cveID": "CVE-2012-4792",
  "cwes": [
    "CWE-416"
  ],
  "dateAdded": "2024-07-23",
  "dueDate": "2024-08-13",
  "forensicTriage": "No",
  "knownRansomwareCampaignUse": "Unknown",
  "notes": "https://learn.microsoft.com/en-us/lifecycle/products/internet-explorer-11; https://nvd.nist.gov/vuln/detail/CVE-2012-4792",
  "product": "Internet Explorer",
  "requiredAction": "The impacted product is end-of-life and should be disconnected if still in use.",
  "shortDescription": "Microsoft Internet Explorer contains a use-after-free vulnerability that allows a remote attacker to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly allocated or (2) is deleted, as demonstrated by a CDwnBindInfo object.",
  "vendorProject": "Microsoft",
  "vulnerabilityName": "Microsoft Internet Explorer Use-After-Free Vulnerability"
}
Egret — Back to top Egret