CVE-2025-49735

HighCVSS 8.1/10Last modified Jun 17, 2026

Description

Use after free in Windows KDC Proxy Service (KPSSVC) allows an unauthorized attacker to execute code over a network.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

Vendor	Product	Versions
Microsoft	Windows Server 2012	>= 6.2.9200.0, < 6.2.9200.25522
Microsoft	Windows Server 2012 (Server Core installation)	>= 6.2.9200.0, < 6.2.9200.25522
Microsoft	Windows Server 2012 R2	>= 6.3.9600.0, < 6.3.9600.22620
Microsoft	Windows Server 2012 R2 (Server Core installation)	>= 6.3.9600.0, < 6.3.9600.22620
Microsoft	Windows Server 2016	>= 10.0.14393.0, < 10.0.14393.8148
Microsoft	Windows Server 2016 (Server Core installation)	>= 10.0.14393.0, < 10.0.14393.8148
Microsoft	Windows Server 2019	>= 10.0.17763.0, < 10.0.17763.7434
Microsoft	Windows Server 2019 (Server Core installation)	>= 10.0.17763.0, < 10.0.17763.7434
Microsoft	Windows Server 2022	>= 10.0.20348.0, < 10.0.20348.3807
Microsoft	Windows Server 2022, 23H2 Edition (Server Core installation)	>= 10.0.25398.0, < 10.0.25398.1665
Microsoft	Windows Server 2025	>= 10.0.26100.0, < 10.0.26200.4349
Microsoft	Windows Server 2025 (Server Core installation)	>= 10.0.26100.0, < 10.0.26200.4349

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49735Vendor Advisory

Timeline

Published: Jul 8, 2025
Last modified: Jun 17, 2026
NVD status: Analyzed

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