Patch tracker / CVE reference / CVE-2025-55679
CVE-2025-55679
CVE-2025-55679 is a medium severity Microsoft vulnerability with a CVSS score of 5.1. 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 5.1 (Medium).
This CVE is among the lower half of tracked Microsoft CVEs by EPSS exploit probability.
This Windows Kernel information disclosure bug is rated Critical with a 9.9 CVSS score, affecting Windows 11 Version 25H2 on both x64 and ARM64 as well as Windows 10 Version 1809 32-bit. Kernel-level information leaks are typically used to defeat address space protections and set up a follow-on exploit, so this matters even though EPSS is a modest 6 percent.
Do this: Roll the kernel information disclosure fix out to Windows 11 25H2 and Windows 10 1809 devices in the current patch cycle.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2025-55679
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Official patch(es) for CVE-2025-55679
Lower priority: patch in your normal 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-2025-55679. 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.