Patch tracker / CVE reference / CVE-2025-53139
CVE-2025-53139
CVE-2025-53139 is a high severity Microsoft vulnerability with a CVSS score of 7.7. Microsoft has shipped the fix: deploy one of the 3 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 7.7 (High).
This CVE is among the lower half of tracked Microsoft CVEs by EPSS exploit probability.
Windows Hello takes another hit, this time a security feature bypass rated Critical (CVSS 9.9) on Windows 11 Version 25H2 and Windows 10 21H2. EPSS sits at 6 percent for now. A bypass of Hello undermines the biometric and PIN sign-in gate itself, which matters most for organizations that have retired passwords in favor of Hello for Business.
Do this: Update Windows 11 25H2 and Windows 10 21H2 devices that use Hello sign-in ahead of the rest of the ring.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2025-53139
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Official patch(es) for CVE-2025-53139
Moderate priority: schedule it in your normal patch cycle. In Intune or Defender, confirm whether the fixing updates 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-2025-53139. 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.