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CVE-2025-59287

Windows Server Update Service (WSUS) Remote Code Execution Vulnerability

Basic Information

CVE State
PUBLISHED
Reserved Date
September 11, 2025
Published Date
October 14, 2025
Last Updated
February 26, 2026
Vendor
Microsoft
Product
Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022, 23H2 Edition (Server Core installation), Windows Server 2025, Windows Server 2025 (Server Core installation)
Description
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
Tags
cisa nuclei_scanner

CVSS Scores

CVSS v3.1

9.8 - CRITICAL

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

SSVC Information

Exploitation
active
Automatable
Yes
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2026-06-01 10:42:54 UTC) Source

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287

Known Exploited Vulnerability Information

Source Added Date
CVE 2026-06-01 10:42:54 UTC

Scanner Integrations

Scanner URL Date Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-59287.yaml 2026-06-01 15:34:43 UTC

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel

  • Detected by Nuclei