Remote Code Execution Vulnerability in Windows Server Update Service by Microsoft
CVE-2025-59287

9.8CRITICAL

Key Information:

Vendor

Microsoft
Status
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Windows Server 2025 (server Core Installation)
Vendor
CVE Published:
14 October 2025

What is CVE-2025-59287?

The vulnerability in Windows Server Update Service arises from the deserialization of untrusted data, which could allow an unauthorized attacker to execute arbitrary code over a network. This flaw demonstrates the importance of secure coding practices to prevent untrusted input from being processed in ways that could compromise system integrity.

Affected Version(s)

Windows Server 2012 (Server Core installation) x64-based Systems 6.2.9200.0 < 6.2.9200.25722

Windows Server 2012 R2 (Server Core installation) x64-based Systems 6.3.9600.0 < 6.3.9600.22824

Windows Server 2012 R2 x64-based Systems 6.3.9600.0 < 6.3.9600.22824

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2025-59287 : Remote Code Execution Vulnerability in Windows Server Update Service by Microsoft