# CVE-2011-2005

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."

- Page: https://www.vulneraibility.com/cve/CVE-2011-2005
- CVSS: 7.8
- Known exploited: yes, in CISA KEV since 2022-03-28; CISA due date 2022-04-18
- EPSS: 31.76% (percentile 98.3)
- Public exploit code: 2 on Exploit-DB · 1 Metasploit module (first 2011-11-30)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-02-10)
- Published: 2011-10-12

## Affected

- microsoft:windows_server_2003
- microsoft:windows_xp

## References

- [other] https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13114
- [advisory] https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-080
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-2005

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.