{"id":"CVE-2011-2005","aliases":["EUVD-2011-1999","GHSA-8q8w-v8pg-496j"],"status":"published","title":"afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2...","description":"afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka \"Ancillary Function Driver Elevation of Privilege Vulnerability.\"","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.31761,"percentile":0.98309,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-264"],"published":"2011-10-12T01:00:00Z","modified":"2026-06-16T23:30:35Z","kev":{"date_added":"2022-03-28","due_date":"2022-04-18","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2022-03-28"},{"source":"kev","since":"2022-03-28"}],"exploits":[{"source":"exploitdb","id":"EDB-18176","title":"Microsoft Windows XP/2003 - 'afd.sys' Local Privilege Escalation (MS11-080)","type":"local","platform":"windows","date":"2011-11-30","verified":true,"url":"https://www.exploit-db.com/exploits/18176"},{"source":"metasploit","id":"exploit/windows/local/ms11_080_afdjoinleaf","title":"MS11-080 AfdJoinLeaf Privilege Escalation","type":"exploit","platform":"Windows","date":"2011-11-30","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/local/ms11_080_afdjoinleaf"},{"source":"exploitdb","id":"EDB-21844","title":"Microsoft Windows - 'AfdJoinLeaf' Local Privilege Escalation (MS11-080) (Metasploit)","type":"local","platform":"windows","date":"2012-10-10","verified":true,"url":"https://www.exploit-db.com/exploits/21844"}],"products":[{"vendor":"microsoft","product":"ancillary function driver (afd.sys)"},{"vendor":"microsoft","product":"windows_server_2003"},{"vendor":"microsoft","product":"windows_xp"}],"references":[{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13114","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred","Broken Link"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-080","tags":["vendor-advisory","x_refsource_MS","x_transferred","Patch","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-2005","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-2005"},{"url":"https://github.com/advisories/GHSA-8q8w-v8pg-496j"}],"sources":{"cve":[{"id":"CVE-2011-2005","description":"afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka \"Ancillary Function Driver Elevation of Privilege Vulnerability.\"","status":"published","published":"2011-10-12T01:00:00Z","modified":"2025-10-22T00:05:49.314Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"updated_at":"2026-11-02T14:35:36.968002Z"}],"euvd":[{"id":"EUVD-2011-1999","description":"afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka \"Ancillary Function Driver Elevation of Privilege Vulnerability.\"","status":"published","published":"2011-10-12T01:00:00Z","modified":"2025-10-22T00:05:49Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"exploited_since":"2022-03-28","updated_at":"2026-11-02T19:49:39.244432Z"}],"ghsa":[{"id":"GHSA-8q8w-v8pg-496j","title":"afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2...","description":"afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka \"Ancillary Function Driver Elevation of Privilege Vulnerability.\"","status":"published","published":"2022-05-14T01:32:14Z","modified":"2025-10-22T03:31:36Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:04:09.843024Z"}],"kev":[{"id":"CVE-2011-2005","title":"Microsoft Ancillary Function Driver (afd.sys) Improper Input Validation Vulnerability","description":"afd.sys in the Ancillary Function Driver in Microsoft Windows does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application.","cwes":["CWE-264"],"kev":{"date_added":"2022-03-28","due_date":"2022-04-18","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:16.541131Z"}],"nvd":[{"id":"CVE-2011-2005","description":"afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input passed to kernel mode, which allows local users to gain privileges via a crafted application, aka \"Ancillary Function Driver Elevation of Privilege Vulnerability.\"","status":"published","published":"2011-10-12T02:52:43.91Z","modified":"2026-06-16T23:30:35.373Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:02:10.769216Z"}]}}