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

Public source report. This item is not matched to your stack and does not establish whether you are affected.

• NewsExploited · CISA KEVMicrosoft · Windows

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

  CVE-2025-59287

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

  CISA's required action · due 14 Nov 2025 for U.S. federal civilian agencies

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

  Cited by CISA: msrc.microsoft.com · nvd.nist.gov

  Added to KEV 24 Oct 2025 · Source checked 23 Oct 2026, 23:15 UTC · CISA KEV entry

  Loading voting…