Patch tracker / CVE reference / CVE-2025-55680
CVE-2025-55680
CVE-2025-55680 is a high severity Microsoft vulnerability with a CVSS score of 7.8. Microsoft has shipped the fix: deploy one of the 6 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.
Risk summary
Not in the CISA KEV catalog. EPSS exploit probability 6.0%. CVSS 7.8 (High).
This CVE is among the lower half of tracked Microsoft CVEs by EPSS exploit probability.
The OneDrive-supporting Cloud Files mini filter driver earns a Critical rating this time, CVSS 9.9, on Windows 11 25H2 and Windows 10 1809. Compared with the High Severity flaws in the same driver, this one offers attackers a stronger primitive in a component present on nearly every corporate laptop. EPSS remains 6 percent with no confirmed exploitation.
Do this: Make this the lead item in the endpoint patch wave for OneDrive-enabled Windows 11 and Windows 10 devices.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2025-55680
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Official patch(es) for CVE-2025-55680
Moderate priority: schedule it in your normal patch cycle. In Intune or Defender, confirm whether the fixing updates KB5066586, KB5066780, KB5066782, KB5066791, KB5066793, KB5066835 are installed across the affected products. Senserva does this automatically across your tenant and flags every missing patch.
Apply the Microsoft security updates below to fix CVE-2025-55680. Each KB page carries the Microsoft Update Catalog download, Microsoft's known issues for the update, a copy-paste PowerShell check for whether it is installed, and the Senserva AI read.
Scope and sources
- Affected products
- Fixed by the same updates
- Authoritative references
Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.