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Unrated severityNVD Advisory· Published Jul 14, 2026· Updated Aug 3, 2026

Windows Subsystem for Linux (WSL2) Kernel Tampering Vulnerability

CVE-2026-57973

Description

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

Affected products

1

Microsoft/Windows Subsystem for Linux (WSL2) Kernelllm-fuzzy

Patches

Vulnerability mechanics

References

1

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57973mitrevendor-advisorypatch

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