Elevation of Privilege in Windows Cloud Files Mini Filter Driver
CVE-2025-55680 is a local elevation of privilege vulnerability in the Windows Cloud Files Mini Filter Driver caused by a time-of-check time-of-use (TOCTOU) race condition. The flaw allows an authorized attacker on a local system to exploit a timing window between a security-relevant check and subsequent use of the checked resource, resulting in privilege escalation. Public reporting in the provided content identifies the issue as more likely to be exploited and notes that a proof-of-concept exploit was reportedly released as of November 10, 2025.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An elevation of privilege vulnerability in the Windows Cloud Files Mini Filter Driver for which a proof-of-concept (PoC) exploit has been released.
An elevation-of-privilege vulnerability in the Windows Cloud Files Mini Filter Driver requiring a race condition win by a local authenticated attacker to obtain SYSTEM privileges.
One of 11 important vulnerabilities considered more likely to be exploited, ranging from remote code execution to privilege escalation across desktop and cloud environments.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.