CVE-2025-27480

Windows Remote Desktop Services Remote Code Execution Vulnerability

CVE-2025-27480 is fixed in 13 products on 1 platform, first by KB5055521, released April 8, 2025. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent.

Urgent

CVSS

8.1

Critical

Exploitation

More likely

Vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.1262

96th percentile

<p>Use after free in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.</p>

Where it's fixed

Product	Fixed in	Fix	Released
Microsoft
Windows Server 2012		KB5055581	Apr 8, 2025
Windows Server 2012 (Server Core installation)		KB5055581	Apr 8, 2025
Windows Server 2012 R2		KB5055557	Apr 8, 2025
Windows Server 2012 R2 (Server Core installation)		KB5055557	Apr 8, 2025
Windows Server 2016	14393.7969	KB5055521	Apr 8, 2025
Windows Server 2016 (Server Core installation)	14393.7969	KB5055521	Apr 8, 2025
Windows Server 2019	17763.7136	KB5055519	Apr 8, 2025
Windows Server 2019 (Server Core installation)	17763.7136	KB5055519	Apr 8, 2025
Windows Server 2022	20348.3453	KB5055526	Apr 8, 2025
Windows Server 2022 (Server Core installation)	20348.3453	KB5055526	Apr 8, 2025
Windows Server 2022, 23H2 Edition (Server Core installation)	25398.1551	KB5055527	Apr 8, 2025
Windows Server 2025	26100.3775	KB5055523	Apr 8, 2025
Windows Server 2025 (Server Core installation)	26100.3775	KB5055523	Apr 8, 2025

Details

Published
April 8, 2025
Weakness
Use After Free
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27480

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