[ CVE-2017-0263 · Published 12 May 2017 ]

Microsoft Win32k Privilege Escalation Vulnerability

Exploited · CISA KEV CVSS 7.8 EPSS 10%Fix available

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-02-10
  • EPSS: 10% chance of exploitation in the next 30 days (higher than 96% of CVEs)

[ Description ]Official description

The kernel-mode drivers in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allow local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability."

CISA: Microsoft Win32k contains a privilege escalation vulnerability due to the Windows kernel-mode driver failing to properly handle objects in memory.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 10 Aug 2022): Apply updates per vendor instructions.

[ References ]References