Zero-day vulnerability in Windows

Race condition
CVE-2025-62215

Vulnerability details

Advisory: SB2025111168 - Privilege escalation in Microsoft Windows kernel

Vulnerable component: Windows

CVE-ID: CVE-2025-62215

CVSSv3 score: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Description:

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition within the OS kernel. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Note, the vulnerability is being actively exploited in the wild.

External links:

https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-62215

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.