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CVE-2011-2005
HIGH
CISA KEV
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
Modified: Apr 22, 2026
NVD-CWE-noinfo
CVSS Metrics
CVSSv3
Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products (3)
| Vendor | Product | Version |
|---|---|---|
| microsoft | windows_server_2003 | - |
| microsoft | windows_xp | - |
| microsoft | windows_xp | - |
References (5)
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-080 Patch, Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13114 Broken Link
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-080 Patch, Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13114 Broken Link
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-2005 US Government Resource
Risk Scores
CVSS Score
7.8 / 10
EPSS Score
67.09%
Top 1% most likely to be exploited
Threat Score
81.3 / 100
CISA Known Exploited
Date Added:
2022-03-28
Due Date:
2022-04-18
Required Action:
Apply updates per vendor instructions.
Data Sources
NVD
CISA KEV
EPSS