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CVE-2011-2005

Known Exploited (CISA KEV)HIGH

7.8

CVSS Severity Score

EPSS Score67.6980%

EPSS Percentile92.23th

PublishedOct 12, 2011

Last ModifiedApr 22, 2026

Vulnerability 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."

Affected Platforms (CPE)

💻

Microsoft

Windows Server 2003

All versions

💻

Microsoft

Windows Xp

All versions

💻

Microsoft

Windows Xp

All versions

References & Advisories

🔗 https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-080

🔗 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13114

🔗 https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-080

🔗 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13114

🔗 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-2005

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