CVE-2013-1291: Microsoft Windows 7

High severity, CVSS 7.1. EPSS: 4.6% chance of exploitation in the next 30 days.

win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, Windows 7 Gold and SP1, and Windows 8 allows local users to cause a denial of service (reboot) via a crafted OpenType font, aka "OpenType Font Parsing Vulnerability" or "Win32k Font Parsing 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 Vista: any version
• Microsoft Windows XP: any version

Published 2013-04-09. Last modified 2026-06-16.