CVE-2025-21218

Published: Jan 14, 2025Modified: Jan 27, 2025

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: secure@microsoft.com (Secondary)

Description

Windows Kerberos Denial of Service Vulnerability

Affected (7)

Products: Microsoft: Windows Server 2012, Windows Server 2016, Windows Server 2019, Windows Server 2022, Windows Server 2022 23h2, Windows Server 2025

6 products

Windows Server 2012

Windows Server 2016

Windows Server 2019

Windows Server 2022

Windows Server 2022 23h2

Windows Server 2025

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows Server 2012	All versions
Microsoft Windows Server 2012	Version r2
Microsoft Windows Server 2016	Before 10.0.14393.7699
Microsoft Windows Server 2019	Before 10.0.17763.6775
Microsoft Windows Server 2022	Before 10.0.20348.3091
Microsoft Windows Server 2022 23h2	Before 10.0.25398.1369
Microsoft Windows Server 2025	Before 10.0.26100.2894

Related CWEs

Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21218

Source: secure@microsoft.com

PatchVendor Advisory

Timeline

No history available yet.