Product:
Windows Subsystem for Linux
Summary
Concurrent execution using shared resource with improper synchronization in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally. This vulnerability can lead to significant security risks if exploited. Attackers can gain unauthorized access to system resources, potentially compromising the integrity and confidentiality of the system.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7 | CVE-2026-21237 |
Exploitation
To exploit this vulnerability, an attacker must have local access to the system and be able to execute code within the Windows Subsystem for Linux. By taking advantage of the race condition, the attacker can manipulate the execution flow to gain elevated privileges, allowing them to perform unauthorized actions on the system.
Affected Products
- Windows Subsystem for Linux: A feature in Windows that allows users to run a Linux environment directly on Windows without the overhead of a virtual machine.
Mitigation
To mitigate this vulnerability, it is recommended to apply the latest security updates provided by Microsoft. Users should also limit local access to systems and monitor for any suspicious activities that may indicate exploitation attempts.