Resource exhaustion in Windows Server - CVE-2025-21218
Published: January 14, 2025
Vulnerability identifier: #VU102745
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-21218
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources in Windows Kerberos. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Affected software
Windows Server
How to mitigate CVE-2025-21218
Install updates from vendor's website.
Windows Server - addressed in versions 2012 R2 6.3.9600.22371, 2012 6.2.9200.25273, 2016 10.0.14393.7699, 2016 10.0.14393.7785, 2019 10.0.17763.6775, 2022 23H2 10.0.25398.1369, 2022 10.0.20348.3091, 2025 10.0.26100.2894