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Unrated severityCISA KEVNVD Advisory· Published Oct 14, 2025· Updated Feb 26, 2026

Windows Server Update Service (WSUS) Remote Code Execution Vulnerability

CVE-2025-59287

Description

Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.

Affected products

12
  • Microsoft/Windows Server 2012cpe-rescue2 versions
    6.2.9200.0+ 1 more
    • (no CPE)range: 6.2.9200.0
    • (no CPE)range: 6.3.9600.0
  • Microsoft/Windows Server 2012 R2 (Server Core installation)v5
    Range: 6.3.9600.0
  • Microsoft/Windows Server 2012 (Server Core installation)v5
    Range: 6.2.9200.0
  • Microsoft/Windows Server 2016cpe-rescue
    Range: 10.0.14393.0
  • Microsoft/Windows Server 2016 (Server Core installation)v5
    Range: 10.0.14393.0
  • Microsoft/Windows Server 2019cpe-rescue
    Range: 10.0.17763.0
  • Microsoft/Windows Server 2019 (Server Core installation)v5
    Range: 10.0.17763.0
  • Microsoft/Windows Server 2003cpe-rescue
    Range: 10.0.20348.0
  • Microsoft/Windows Server 2022, 23H2 Edition (Server Core installation)v5
    Range: 10.0.25398.0
  • Microsoft/Windows Server 2025cpe-rescue
    Range: 10.0.26100.0
  • Microsoft/Windows Server 2025 (Server Core installation)v5
    Range: 10.0.26100.0

Patches

Vulnerability mechanics

References

1

News mentions

2