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

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Microsoft Windows Subsystem for Linux (WSL2) affected
Version Status Constraints
5.0.0.0 affected < 2.7.10

No data.

No data.

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Project Subscriptions

Vendors Products
Microsoft Subscribe
Windows Subsystem For Linux Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57973 cve-icon
History

Tue, 14 Jul 2026 17:45:00 +0000

Type Values Removed Values Added
Description Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to perform tampering locally.
Title Windows Subsystem for Linux (WSL2) Kernel Tampering Vulnerability
First Time appeared Microsoft
Microsoft windows Subsystem For Linux
Weaknesses CWE-367
CPEs cpe:2.3:a:microsoft:windows_subsystem_for_linux:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft windows Subsystem For Linux
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-07-14T19:41:51.980Z

Reserved: 2026-06-26T17:45:44.853Z

Link: CVE-2026-57973

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses