Windows Key Distribution Center Remote Code Execution Vulnerability

CriticalVendor CVSS 8.8 / 10 1 CVE Published Sep 8, 2026 at 7:00 AM UTC

Summary

Use after free in Windows Key Distribution Center allows an authorized attacker to execute code over a network.

Show 4 more products

Install KB5122876. Install KB5122882. Install KB5122871. Install KB5123099. Install KB5123065. Install KB5123066.

Update history

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

Oct 2, 2026 at 12:40 PM UTC
- The vendor changed the advisory's last-updated date.
Sep 27, 2026 at 11:11 PM UTC
- Added fixed versions: 6.3.9600.23398.
- Removed fixed versions: 6.3.9600.23397.

Sep 8, 2026 at 7:00 AM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Sep 8, 2026 at 7:15 PM UTC
Added to SecurityAlert
We collected the advisory from the official source.
Sep 30, 2026 at 7:00 AM UTC
Updated by Microsoft Security Response Center
The vendor changed the advisory after it was first published.
Oct 28, 2026 at 3:45 AM UTC
Confirmed at the source
Our collector saw this advisory during a later source check.

Details collected from Microsoft Security Response Center.

Official bulletin How SecurityAlert builds this record

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