MSRC-CVE-2026-88073 — Windows Graphics Kernel Elevation of Privilege Vulnerability

Summary

Impact: Elevation of Privilege. Microsoft rating: Critical. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

Security updates
10.0.19044.7807 — https://support.microsoft.com/help/5126657
10.0.22631.7652 — https://support.microsoft.com/help/5126653
10.0.26100.9711 — https://support.microsoft.com/help/5127648
10.0.26100.33650 — https://support.microsoft.com/help/5126646
10.0.28000.3231 — https://support.microsoft.com/help/5127646

Vulnerabilities 1

High 8.8

CVE-2026-88073

Windows Graphics Kernel Elevation of Privilege Vulnerability

Use after free in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.

Microsoft Windows 10 Version 21H2 Windows 10 Version 22H2 Windows Server 2025 Windows

Oct 13, 2026

Revision history

2026-10-13 #1
Information published.

References

CVE-2026-88073 Windows Graphics Kernel Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88073
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss