EUVD-2026-29593
GHSA-2w3f-wfrh-8q9g
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionNVD
Use after free in Windows Win32K - GRFX allows an authorized attacker to elevate privileges locally.
AnalysisAI
Local privilege escalation in Windows Win32K graphics subsystem affects Windows 10 (1607 through 22H2), Windows 11 (all versions including 26H1 preview), and Windows Server 2012 through authenticated low-privileged local users exploiting a use-after-free memory corruption flaw. Microsoft has released security updates addressing this CWE-416 vulnerability with CVSS 7.8 severity. …
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RemediationAI
Within 24 hours: Inventory all affected Windows systems (Windows 10 1607-22H2, Windows 11 all versions, Windows Server 2012-2022) and prioritize RDP-exposed and shared terminal servers. Within 7 days: Deploy Microsoft security updates for all affected systems; verify patch installation via Windows Update confirmation or manual version checks. …
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External POC / Exploit Code
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