Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data Vulnerability

Description

Microsoft Windows Server Update Service (WSUS) contains a deserialization of untrusted data vulnerability that allows for remote code execution.

Required Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

References

• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-59287
• https://nvd.nist.gov/vuln/detail/CVE-2025-59287

Additional Information

Catalog Version

2025.11.21

Catalog Released

Nov. 21, 2025

Days Until Due

0 days

Last Updated

5 hours ago