CVE tracker / CVE-2025-55231

CVE-2025-55231

CVE-2025-55231 is the Windows Storage-based Management Service Remote Code Execution Vulnerability. Microsoft rates it Important, CVSS 7.5. It is not in CISA's Known Exploited Vulnerabilities catalog. Published August 21, 2025.

Risk summary

HighRemote Code Execution

7.5

CVSS v3 base

0.5%

EPSS: chance of exploitation in 30 days

High

Severity

Important

Microsoft's rating

Unlikely

Microsoft: exploitation

In CISA KEV

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

How to fix it

Microsoft lists 10 affected products and the update that fixes each:

KB5062553 · fixed build 10.0.26100.4652
Windows Server 2025, Windows Server 2025 (Server Core installation)
KB5062557 · fixed build 10.0.17763.7558
Windows Server 2019 (Server Core installation), Windows Server 2019
KB5062560 · fixed build 10.0.14393.8246
Windows Server 2016 (Server Core installation), Windows Server 2016
KB5062572 · fixed build 10.0.20348.3932
Windows Server 2022 (Server Core installation), Windows Server 2022
KB5062597 · fixed build 6.3.9600.22676
Windows Server 2012 R2 (Server Core installation), Windows Server 2012 R2

What Microsoft changed

August 26, 2025: Corrected Download and Article links in the Security Updates table. This is an informational change only.
August 21, 2025: Information published. This CVE was addressed by updates that were released in July 2025, but the CVE was inadvertently omitted from the July 2025 Security Updates. This is an informational change only. Customers who have already installed the July 2025 updates do not need to take any further action.

Details

Weakness: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Publicly disclosed (Microsoft): No
Exploited (Microsoft): No
Known exploited (CISA KEV): Not listed
Published: August 21, 2025
Last revised: August 26, 2025

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References

Microsoft Security Update Guide NVD CVE record CWE

From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.