Use After Free Vulnerability in Windows Remote Desktop Services by Microsoft
CVE-2025-26671

8.1HIGH

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:
8 April 2025

Summary

A significant vulnerability in Windows Remote Desktop Services permits unauthorized attackers to execute code remotely through a use after free flaw. This could lead to potential exploitation over the network, compromising system security if not promptly addressed with available patches.

Affected Version(s)

Windows Server 2008 R2 Service Pack 1 (Server Core installation) x64-based Systems 6.1.7601.0 < 6.1.7601.27670

Windows Server 2008 R2 Service Pack 1 x64-based Systems 6.1.7601.0 < 6.1.7601.27670

Windows Server 2012 (Server Core installation) x64-based Systems 6.2.9200.0 < 6.2.9200.25423

References

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

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.