CVE Record
[ CRITICAL ]CVE-2025-59287
Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data Vulnerability
Microsoft Windows Server Update Service (WSUS) contains a deserialization of untrusted data vulnerability that allows for remote code execution.
- Vendor
- Microsoft
- Product
- Windows
- CVSS
- 9.8
- EPSS (exploit probability)
- 99.9%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Published
Microsoft Windows Server Update Service (WSUS) contains a deserialization of untrusted data vulnerability that allows for remote code execution.
Added to CISA’s Known Exploited Vulnerabilities catalog on 2025-10-24. Required action per CISA: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Due date: 2025-11-14.
This is an auto-synced KEV catalog record pending a full 0dayNews write-up — see CISA’s KEV catalog and the NVD record linked above for primary sources.