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CVE-2026-57973

6.3 · MEDIUM

Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to perform tampering locally.

Published Jul 14, 2026microsoftCWE-367EPSS 0.22%

Overview

CVE-2026-57973 is a medium-severity vulnerability affecting microsoft windows_subsystem_for_linux. It was published on July 14, 2026 and has a CVSS 3.1 base score of 6.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to perform tampering locally.

Remediation

Check the references section for vendor advisories and patches from microsoft. Update windows_subsystem_for_linux to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
microsoftwindows_subsystem_for_linux>= 0, < 2.7.10Affected

References

Refmsrc.microsoft.com/update-guide/vulnerability/CVE-2026-57973

How CyberStrike helps

Frequently asked questions

What is CVE-2026-57973?

CVE-2026-57973 is a medium-severity vulnerability affecting microsoft windows_subsystem_for_linux. It was published on July 14, 2026 and has a CVSS 3.1 base score of 6.3 (MEDIUM).

How severe is CVE-2026-57973?

This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-57973?

Check the references section for vendor advisories and patches from microsoft. Update windows_subsystem_for_linux to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-57973?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-57973 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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