cve-2026-34347

About this tag
CVE-2026-34347 is an Important-rated Windows Win32k elevation-of-privilege vulnerability disclosed by Microsoft on May 12, 2026. The flaw is a use-after-free bug in the Win32K graphics subsystem that allows a local, authenticated attacker to gain SYSTEM privileges after winning a race condition. While Microsoft reported that the vulnerability was not publicly disclosed or exploited at the time of publication, it resides in a local Windows attack surface that can turn an initial foothold into full machine control. This tag covers discussions about the vulnerability's technical details, patch urgency, and mitigation strategies for administrators.

  1. CVE-2026-34347 Patch Now: Win32k Use-After-Free Win SYSTEM Privilege

    Microsoft disclosed CVE-2026-34347 on May 12, 2026, as an Important-rated Windows Win32k elevation-of-privilege vulnerability in which a local, authenticated attacker could exploit a use-after-free flaw in the Win32K graphics subsystem to gain SYSTEM privileges after winning a race condition...
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    • cve-2026-34347 privilege escalation win32k use after free windows security updates
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