CVE-2015-0078: Microsoft Windows 8

High severity, CVSS 7.2. EPSS: 1.7% chance of exploitation in the next 30 days.

win32k.sys in the kernel-mode drivers in Microsoft Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 does not properly validate the token of a calling thread, which allows local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability."

Affected products

• Microsoft Windows 8: affected versions not specified
• Microsoft Windows 8.1: affected versions not specified
• Microsoft Windows Rt: affected versions not specified
• Microsoft Windows Rt 8.1: affected versions not specified
• Microsoft Windows Server 2012: affected versions not specified; version r2 only

Published 2015-03-11. Last modified 2026-06-17.