CVE-2025-55687

7.4 HIGH

Published: October 14, 2025 Modified: October 27, 2025

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Resilient File System (ReFS) allows an unauthorized attacker to elevate privileges locally.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55687

Source: secure@microsoft.com

Vendor Advisory

1 reference(s) from NVD

Quick Stats

CVSS v3 Score

7.4 / 10.0

EPSS (Exploit Probability)

0.0%

15th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-362 CWE-416 CWE-362

Affected Vendors

microsoft

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