CVE tracker / CVE-2026-69712
CVE-2026-69712
CVE-2026-69712 is the Windows Key Distribution Center Remote Code Execution Vulnerability. Microsoft rates it Critical, CVSS 8.8. It is not in CISA's Known Exploited Vulnerabilities catalog. Published September 8, 2026.
Risk summary
Microsoft describes it: “Use after free in Windows Key Distribution Center allows an authorized attacker to execute code over a network.”
How to fix it
Microsoft lists 12 affected products and the update that fixes each:
- KB5122871 · fixed build 10.0.26100.33438
Windows Server 2025, Windows Server 2025 (Server Core installation) - KB5122876 · fixed build 10.0.17763.9245
Windows Server 2019 (Server Core installation), Windows Server 2019 - KB5122882 · fixed build 10.0.20348.5622
Windows Server 2022 (Server Core installation), Windows Server 2022 - KB5123065 · fixed build 6.2.9200.26349
Windows Server 2012 (Server Core installation), Windows Server 2012 - KB5123066 · fixed build 6.3.9600.23398
Windows Server 2012 R2 (Server Core installation), Windows Server 2012 R2 - KB5123099 · fixed build 10.0.14393.9512
Windows Server 2016 (Server Core installation), Windows Server 2016
What Microsoft changed
- September 8, 2026: Information published.
- September 30, 2026: Updated an acknowledgement. This is an informational change only.
Details
- Weakness
- CWE-416: Use After Free
- Publicly disclosed (Microsoft)
- No
- Exploited (Microsoft)
- No
- Known exploited (CISA KEV)
- Not listed
- Published
- September 8, 2026
- Last revised
- September 30, 2026
Get told when this changes
Senserva Watch emails Microsoft security and patch alerts when something moves: a new exploitation report, a revised fix, a known issue. Free, one email address.
References
From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.