CVE-2025-59287
Microsoft · Published October 14, 2025
9.8
CVSS v3.1
CRITICALCISA KEV — Federal agencies must patch by deadline
Actively exploited in the wild
Patch availableGet patch
Description
Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.
Affected Products
- Windows Server 2012
- Windows Server 2016 < 10.0.14393.8524
- Windows Server 2019 < 10.0.17763.7922
- Windows Server 2022 < 10.0.20348.4297
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H