Known exploited vulnerability · Microsoft

CVE-2011-2005: Microsoft Ancillary Function Driver (afd.sys) Improper Input Validation Vulnerability

highCVSS 3.1 7.8Exploited

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."

Published Oct 12, 2011 · Updated Jun 16, 2026

Required action

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Advisory details

From the National Vulnerability Database. This product uses the NVD API but is not endorsed or certified by the NVD.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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