CVE-2026-57973
Windows Subsystem for Linux (WSL2) Kernel Tampering vulnerability
MSRC advisory July 14, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-57973
- Affected products
- Windows Subsystem for Linux (WSL2) Kernel Tampering · Microsoft Windows Subsystem for Linux (WSL2) Kernel Tampering · Microsoft
What happened
Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to perform tampering locally.
What it means for your business
Windows Subsystem for Linux (WSL2) Kernel Tampering vulnerability (CVE-2026-57973) was added to Microsoft’s security update guidance. Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to perform tampering locally. If you need help checking exposure, call (864) 335-9223.
Sources
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