Oct 2025: Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
CVE-2025-55680 Published on October 14, 2025
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
Time-of-check time-of-use (toctou) race condition in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
Weakness Type
What is a TOCTTOU Vulnerability?
The software checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the software to perform invalid actions when the resource is in an unexpected state. This weakness can be security-relevant when an attacker can influence the state of the resource between check and use. This can happen with shared resources such as files, memory, or even variables in multithreaded programs.
CVE-2025-55680 has been classified to as a TOCTTOU vulnerability or weakness.
Products Associated with CVE-2025-55680
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Affected Versions
Microsoft Windows 10 Version 1809:- Version 10.0.17763.0 and below 10.0.17763.7919 is affected.
- Version 10.0.19044.0 and below 10.0.19044.6456 is affected.
- Version 10.0.19045.0 and below 10.0.19045.6456 is affected.
- Version 10.0.22621.0 and below 10.0.22621.6060 is affected.
- Version 10.0.22631.0 and below 10.0.22631.6060 is affected.
- Version 10.0.22631.0 and below 10.0.22631.6060 is affected.
- Version 10.0.26100.0 and below 10.0.26100.6899 is affected.
- Version 10.0.26200.0 and below 10.0.26200.6899 is affected.
- Version 10.0.17763.0 and below 10.0.17763.7919 is affected.
- Version 10.0.17763.0 and below 10.0.17763.7919 is affected.
- Version 10.0.20348.0 and below 10.0.20348.4294 is affected.
- Version 10.0.25398.0 and below 10.0.25398.1913 is affected.
- Version 10.0.26100.0 and below 10.0.26100.6899 is affected.
- Version 10.0.26100.0 and below 10.0.26100.6899 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.