CVE-2013-3887: Microsoft Windows 7

Medium severity, CVSS 4.9. EPSS: 2.6% chance of exploitation in the next 30 days.

The Ancillary Function Driver (AFD) in afd.sys in the kernel-mode drivers in Microsoft Windows XP SP2, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, and Windows Server 2012 allows local users to obtain sensitive information from kernel memory by leveraging improper copy operations, aka "Ancillary Function Driver Information Disclosure Vulnerability."

Affected products

• Microsoft Windows 7: any version
• Microsoft Windows 8: affected versions not specified
• Microsoft Windows Server 2003: any version
• Microsoft Windows Server 2008: any version
• Microsoft Windows Server 2012: affected versions not specified
• Microsoft Windows Vista: any version
• Microsoft Windows XP: affected versions not specified

Published 2013-11-13. Last modified 2026-06-16.