CVE-2026-119951

Windows Deployment Services Remote Code Execution Vulnerability

CVE-2026-119951 is fixed in 8 products on 1 platform, first by KB5131090, released November 10, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent

CVSS

8.1

Critical

Exploitation

None reported

Exploitation Less Likely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

n/a

<p>Use after free in Windows Deployment Services allows an unauthorized attacker to execute code over a network.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows Server 2016		KB5131291	Nov 10, 2026
Windows Server 2016 (Server Core installation)		KB5131291	Nov 10, 2026
Windows Server 2019		KB5131085	Nov 10, 2026
Windows Server 2019 (Server Core installation)		KB5131085	Nov 10, 2026
Windows Server 2022	20348.5870	KB5131090	Nov 10, 2026
Windows Server 2022 (Server Core installation)	20348.5870	KB5131090	Nov 10, 2026
Windows Server 2025		KB5131077	Nov 10, 2026
Windows Server 2025	26100.33822	KB5131080	Nov 10, 2026
Windows Server 2025 (Server Core installation)		KB5131077	Nov 10, 2026
Windows Server 2025 (Server Core installation)	26100.33822	KB5131080	Nov 10, 2026

Details

Published
November 10, 2026
Weakness
Use After Free
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119951

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