CVE-2026-57973
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2026-57973 is indexed in GitHub PoC. Expect opportunistic scanning and exploitation attempts — prioritize remediation even though it is not (yet) in the CISA KEV catalog.
Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to perform tampering locally.
CSIRTS triage
- What
- A time-of-check time-of-use race condition allows an authorized attacker to perform tampering locally.
- Who is affected
- Authorized users of Windows Subsystem for Linux.
- Urgency
- Remediation is important due to the medium severity of the vulnerability.
- Action
- Update to the latest version to mitigate the vulnerability.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2026-57973 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
Advisory coverage (2)
External references
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