CVE-2011-2005
Microsoft Ancillary Function Driver (afd.sys) Improper Input Validation Vulnerability
- Published
- Oct 12, 2011
- Updated
- Oct 22, 2025
- Assigning CNA
- microsoft
- Evidence observed
- Nov 30, 2011
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HModerate · next 30 days
- Percentile
- 98.3%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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."
Sources
3- WindowsElevationResearch
Windows Elevation(持续更新)
ryujin · windows · Nov 30, 2011
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