Microsoft — Windows — Microsoft Windows Server Update Service (WSUS) contains a deserialization of untrusted data vulnerability that allows for remote code execution.
Details
EPSS Score
ⓘ
99.94%
100th percentile
Confidence
100%
CISA KEV
Date Added
Oct 24, 2025
Patch Due
Nov 14, 2025
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.