High severity7.8NVD Advisory· Published Jun 9, 2026· Updated Jun 9, 2026

CVE-2026-45487

Description

Time-of-check time-of-use (TOCTOU) race condition in Program Compatibility Assistant Service allows an authorized attacker to elevate privileges locally.

Affected products

Microsoft/Program Compatibility Assistant Servicellm-fuzzy

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45487nvd

News mentions

Microsoft June 2026 Patch Tuesday fixes 3 zero-day, 200 flaws
BleepingComputer · Jun 9, 2026
Microsoft Patch Tuesday June 2026 – 198 Vulnerabilities Fixed, Including 3 Zero-days
Cyber Security News · Jun 9, 2026

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