Description
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Microsoft Windows Server 2012
6.2.9200.0 to < 6.2.9200.25728affected
Microsoft Windows Server 2012 (Server Core installation)
6.2.9200.0 to < 6.2.9200.25728affected
Microsoft Windows Server 2012 R2
6.3.9600.0 to < 6.3.9600.22826affected
Microsoft Windows Server 2012 R2 (Server Core installation)
6.3.9600.0 to < 6.3.9600.22826affected
Microsoft Windows Server 2016
10.0.14393.0 to < 10.0.14393.8524affected
Microsoft Windows Server 2016 (Server Core installation)
10.0.14393.0 to < 10.0.14393.8524affected
Microsoft Windows Server 2019
10.0.17763.0 to < 10.0.17763.7922affected
Microsoft Windows Server 2019 (Server Core installation)
10.0.17763.0 to < 10.0.17763.7922affected
Microsoft Windows Server 2022
10.0.20348.0 to < 10.0.20348.4297affected
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
10.0.25398.0 to < 10.0.25398.1916affected
Microsoft Windows Server 2025
10.0.26100.0 to < 10.0.26100.6905affected
Microsoft Windows Server 2025 (Server Core installation)
10.0.26100.0 to < 10.0.26100.6905affected
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287 ↗
- https://gist.github.com/hawktrace/880b54fb9c07ddb028baaae401bd3951 ↗
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-59287 ↗
- https://www.bleepingcomputer.com/news/security/cisa-orders-feds-to-patch-windows-server-wsus-flaw-exploited-in-attacks/ ↗
- https://hawktrace.com/blog/CVE-2025-59287 ↗
- https://www.vicarius.io/vsociety/posts/cve-2025-59287-detection-script-rce-vulnerability-in-windows-server-update-service ↗
- https://www.vicarius.io/vsociety/posts/cve-2025-59287-mitigation-script-rce-vulnerability-in-windows-server-update-service ↗