Vulnerability Monitor

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CVE-2026-20869

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

Published

2026-01-13T18:16:16.480

Last Modified

2026-01-15T15:47:01.603

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.0 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-362
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System microsoft windows_10_1607 < 10.0.14393.8783 Yes
Operating System microsoft windows_10_1607 < 10.0.14393.8783 Yes
Operating System microsoft windows_10_1809 < 10.0.17763.8276 Yes
Operating System microsoft windows_10_1809 < 10.0.17763.8276 Yes
Operating System microsoft windows_10_21h2 < 10.0.19044.6809 Yes
Operating System microsoft windows_10_22h2 < 10.0.19045.6809 Yes
Operating System microsoft windows_11_23h2 < 10.0.22631.6491 Yes
Operating System microsoft windows_11_24h2 < 10.0.26100.7623 Yes
Operating System microsoft windows_11_25h2 < 10.0.26200.7623 Yes
Operating System microsoft windows_server_2008 - Yes
Operating System microsoft windows_server_2008 - Yes
Operating System microsoft windows_server_2008 r2 Yes
Operating System microsoft windows_server_2012 - Yes
Operating System microsoft windows_server_2012 r2 Yes
Operating System microsoft windows_server_2016 < 10.0.14393.8783 Yes
Operating System microsoft windows_server_2019 < 10.0.17763.8276 Yes
Operating System microsoft windows_server_2022 < 10.0.20348.4648 Yes
Operating System microsoft windows_server_2022_23h2 < 10.0.25398.2092 Yes
Operating System microsoft windows_server_2025 < 10.0.26100.32230 Yes
References