This vulnerability, tracked as CVE-2025-21313 and classified under CWE-833 (Deadlock), affects Windows 11 Version 24H2 (build 10.0.26100.0). It allows an attacker with low privileges and no user interaction to cause a denial of service by triggering a deadlock in the Security Account Manager (SAM) service. The CVSS 3.1 base score is 6.5, reflecting a medium severity with network attack vector, low attack complexity, and no impact on confidentiality or integrity but high impact on availability. Microsoft has released an official fix to address this issue.

Successful exploitation results in denial of service by causing a deadlock in the SAM service, leading to system unavailability. There is no impact on confidentiality or integrity of the system. The attack requires low privileges and no user interaction, making it feasible in certain threat scenarios but limited in scope due to privilege requirements.

An official fix is available from Microsoft to remediate this vulnerability. Users and administrators should apply the provided security update as soon as possible. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21313 for detailed patch information and deployment instructions.