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High severity7.0NVD Advisory· Published Aug 11, 2026· Updated Aug 11, 2026

CVE-2026-65678

CVE-2026-65678

Description

Use after free in Windows Win32K allows an authorized attacker to elevate privileges locally.

Affected products

1

Microsoft/Windows Win32Kllm-fuzzy

Patches

Vulnerability mechanics

References

1

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65678nvd

News mentions

1

Microsoft Patch Tuesday Update August 2026 – 394 Vulnerabilities Fixed, Including 3 Zero-Days
Cyber Security News · Aug 11, 2026