CVE-2026-77894

HighCVSS 7.0

Published: 08/09/2026(UTC)Updated: 24/09/2026(UTC)Translated: 09/09/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.20%

9th percentile - higher than 9% of all known CVEs

Summary

A race condition in Windows Installer due to improper synchronization of shared resources allows an authorized attacker to elevate privileges locally.

Risk Assessment

An attacker with limited privileges could gain full control of the system, leading to data and resource compromise.

Recommendation

Apply the latest Windows security updates that address this vulnerability.

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Original NVD description (English source)

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Installer allows an authorized attacker to elevate privileges locally.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS