CVSS 3.1
7.0 highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2026-21237
High (7.0) in microsoft. EPSS 0.3% chance of exploitation in the next 30 days.
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-362, CWE-416
- Published
- Modified
- Record from
- the NVD, synced
Affected
- microsoft:windows_10_21h2
- microsoft:windows_10_22h2
- microsoft:windows_11_23h2
- microsoft:windows_11_24h2
- microsoft:windows_11_25h2
- microsoft:windows_server_2022
- microsoft:windows_server_2022_23h2
- microsoft:windows_server_2025