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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Windows Subsystem for Linux (WSL2) | 5.0.0.0 – < 2.7.10 | 2.7.10 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
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riddhimaan-sth404/CVE-2026-57973 ★ 0 · Oct 2, 2026
CVE-2026-57973 is a time-of-check to time-of-use (TOCTOU) race condition vulnerability in the Microsoft Windows Subsystem for Linux (WSL2) that allows an authorized local attacker to perform tamperin…
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 2
- WID-SEC-2026-2316 Microsoft Windows Produkte: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 6, 2026
- MSRC-CVE-2026-57973 Windows Subsystem for Linux (WSL2) Kernel Tampering Vulnerability Microsoft Security Response Center · Jul 14, 2026
References
- Windows Subsystem for Linux (WSL2) Kernel Tampering Vulnerability vendor-advisory patch