CVE-2011-2005: Microsoft Ancillary Function Driver (afd.sys) Improper Input Validation Vulnerability
High · CVSS 7.8 (CVSS 3.1)KEV known exploitedEPSS 31.8%, 98th percentilePublished Updated Assigner: microsoft
In CISA’s Known Exploited Vulnerabilities catalog: Microsoft Ancillary Function Driver (afd.sys) Improper Input Validation Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply updates per vendor instructions.
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."
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Microsoft: Ancillary Function Driver (afd.sys)
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-080 (opens in new tab)
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13114 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)