Patch tracker / KB5131077
KB5131077: Windows Server 2025 Hotpatch Security Update (November 2026)
KB5131077 is a Critical security update for Windows Server 2025, released 2026-11-10. It closes 625 CVEs with a maximum CVSS of 9.8. Microsoft documents 1 known issue for this update, quoted below.
Before you deploy: Microsoft lists 1 known issue for this update.
Our data comes from Microsoft, CISA and other public sources, and it can be wrong or out of date. If you are unsure, check the linked source before you act, and tell us when we are wrong so we can fix it.
Microsoft titles this update: November 10, 2026: Hotpatch KB5131077 (OS Build 26100.33730)
Update summary
Fixes 625 CVEs. Most severe CVSS 9.8 (Critical).
Microsoft documents 1 known issue with this update.
- Windows Server Update Services (WSUS) does not display error details
Senserva AI Opinion and rich prompt for KB5131077
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5131077
- Released
- 2026-11-10
- Last changed
- 2026-11-10
- Changes tracked
- 1
Senserva began recording day-to-day change history on 2026-07-07, and refreshes it several times a day. Release dates are historical where Microsoft publishes them; revision history is tracked from that date forward, so it does not include changes made before then.
Check if KB5131077 is installed
Elevated PowerShell. No output means it is not installed.
Known issues, from Microsoft
Quoted from Microsoft's support article for KB5131077 (checked 2026-11-10). Microsoft lists 1 known issue. Verify against the article before acting.
Windows Server Update Services (WSUS) does not display error details
After installing KB5070893 or later updates, Windows Server Update Services (WSUS) does not display synchronization error details within its error reporting. This functionality is temporarily removed to address the Remote Code Execution Vulnerability, CVE-2025-59287 .
CVEs fixed by this update
Sorted exploited-first, then by CVSS. Every CVE links to its Senserva page with the full risk facts, references, and a ready-to-paste AI prompt.
What the press says about this update
Trusted-source coverage of the CVEs this update fixes, pulled live from their own feeds.
Scope and sources
- Affected products
- Also released in November 2026
KB5002945
24 CVEs · CriticalKB5129299
57 CVEs · CriticalKB5129300
54 CVEs · CriticalKB5131080
627 CVEs · CriticalKB5131085
575 CVEs · CriticalKB5131087
574 CVEs · CriticalKB5131090
592 CVEs · CriticalKB5131096
546 CVEs · CriticalThe full month, summarized: Microsoft Patch Tuesday.
- Authoritative references
See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.