CVE Vulnerabilities

CVE-2025-21218

Uncontrolled Resource Consumption

Published: Jan 14, 2025 | Modified: Jan 27, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

Windows Kerberos Denial of Service Vulnerability

Weakness

The product does not properly control the allocation and maintenance of a limited resource.

Affected Software

Name Vendor Start Version End Version
Windows_server_2012 Microsoft - (including) - (including)
Windows_server_2012 Microsoft r2 (including) r2 (including)
Windows_server_2016 Microsoft * 10.0.14393.7699 (excluding)
Windows_server_2019 Microsoft * 10.0.17763.6775 (excluding)
Windows_server_2022 Microsoft * 10.0.20348.3091 (excluding)
Windows_server_2022_23h2 Microsoft * 10.0.25398.1369 (excluding)
Windows_server_2025 Microsoft * 10.0.26100.2894 (excluding)

Potential Mitigations

  • Mitigation of resource exhaustion attacks requires that the target system either:

  • The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.

  • The second solution is simply difficult to effectively institute – and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.

References