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MSRC compact vulnerability detail

CVE-2025-55680 · 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.

Severity
Important
Impact
Elevation of Privilege
CVSS
7.8 base · 6.8 temporal
Release
2025-10-14
Signals
Windows Cloud Files Mini Filter Driver Elevation of Privilege Exploited: No Publicly disclosed: No Exploitability: Exploitation More Likely
CWE
CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition
Patch Diff
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Description
Time-of-check time-of-use (toctou) race condition in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
FAQ / Articles
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 unauthorized attacker to elevate privileges locally.
FAQ
What privileges could be gained by an attacker who successfully exploited the vulnerability? A domain user could use this vulnerability to elevate privileges to SYSTEM assigned integrity level.
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.