# CVE-2026-112917: Docker Desktop WSL2 AF_VSOCK isolation bypass via 32-bit socketcall

> CVE-2026-112917: Docker Desktop WSL2 AF_VSOCK isolation bypass via 32-bit socketcall. CVSS 9.2 (CVSS 4.0).

Canonical: https://rewindex.com/cve/CVE-2026-112917
Last updated: 2026-11-04T14:17:27Z

- Published: 2026-11-03 19:08 UTC · Updated: 2026-11-04 14:17 UTC · Assigner: Docker
- CVSS: 9.2 (CVSS 4.0) · Severity: Critical
- EPSS: 0.18%, 8th percentile (scored 2026-11-04)
- CISA KEV: no
- CWE: CWE-424

## Description

In Docker Desktop for Windows with the WSL2 backend, an unprivileged Linux container can use 32-bit socketcall to bypass the default seccomp restriction on AF\_VSOCK. This can expose host-facing services and Windows files accessible to the logged-in user. The issue affects x86-64 WSL2; LinuxKit-based backends are unaffected. The issue is fully fixed only with Docker Desktop 4.98.0 or later and WSL 3.0.3 or later. Docker Desktop 4.98.0 or later running on an older WSL remains affected.

## Affected vendors and products

- Docker: Docker Desktop

## Tracked companies

- [Docker](https://rewindex.com/company/docker.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-112917)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-112917)
- [https://docs.docker.com/desktop/release-notes/\#4980](https://docs.docker.com/desktop/release-notes/#4980)
- [https://github.com/microsoft/WSL2-Linux-Kernel/releases/tag/linux-msft-wsl-6.18.54.1](https://github.com/microsoft/WSL2-Linux-Kernel/releases/tag/linux-msft-wsl-6.18.54.1)
- [https://github.com/microsoft/WSL/releases/tag/3.0.3](https://github.com/microsoft/WSL/releases/tag/3.0.3)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-112917 · Markdown: https://rewindex.com/cve/CVE-2026-112917.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-112917 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T10:29:53.796Z