🛡️ CVE-2025-55231 — windows-server-2012

🟠 CVSS 7.5 — High ✅ No Known Exploit CWE-362 NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Storage allows an unauthorized attacker to execute code over a network.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2025-55231 is classified as CWE-362: Race Condition. Concurrent operations share state without proper synchronisation, so timing decides whether the result is correct.

Affected software

CVE-2025-55231 is recorded against 5 packages.

  • windows-server-2012
  • windows-server-2016 (fixed in 10.0.14393.8416)
  • windows-server-2019 (fixed in 10.0.17763.7783)
  • windows-server-2022 (fixed in 10.0.20348.4161)
  • windows-server-2025 (fixed in 10.0.26100.6563)

Timeline and source

Published on 21 August 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

msrc.microsoft.com

Details

Severity HIGH
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE CWE-362
Public Exploit ✅ No
Source NVD
Published 2025-08-21
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
windows-server-2012
windows-server-2016 10.0.14393.8416
windows-server-2019 10.0.17763.7783
windows-server-2022 10.0.20348.4161
windows-server-2025 10.0.26100.6563

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