CVE Catalog

CVE-2026-20869

HighCVSS 7.0
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.29%

21th percentile - higher than 21% of all known CVEs

Summary

A race condition exists in Windows Local Session Manager (LSM) due to improper synchronization of shared resources. This allows an authorized attacker to elevate privileges locally.

Risk Assessment

An authorized user could gain elevated privileges, potentially leading to session hijacking or compromise of session management.

Recommendation

Apply the security patch from the Windows vendor.

Related vulnerabilities

Original NVD description (English source)

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

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