Disclosure summary
Microsoft Windows Server Update Service (WSUS) contains a deserialization of untrusted data vulnerability that allows for remote code execution.
CISA remediation guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Original records & references
PUBLISHED 2025-10-24T00:00:00-04:00
MODIFIED 2025-10-24T00:00:00-04:00
INGESTED 2026-10-06T11:42:57-04:00