# CVE-2026-92947

vm2 sandbox exposes host Buffer pool, enabling cross-realm memory read/write

- Page: https://www.vulneraibility.com/cve/CVE-2026-92947
- CVSS: 10.0
- Known exploited: not in CISA KEV as of our last sync
- EPSS: 0.48% (percentile 41.6)
- CISA SSVC: exploitation poc, automatable yes, technical impact total (assessed 2026-09-17)
- Weakness: CWE-200
- Also known as: GHSA-fcqc-726x-5wfc
- Published: 2026-09-17

## Affected versions

- patriksimek vm2: affected < 3.11.7; fixed in 3.11.7

A version outside these ranges is not a statement that it is unaffected.

## Impact

Sandboxed code can read/write host process memory via Buffer allocations, exposing secrets, enabling data theft, DoS, or further compromise.

## Action

Immediate action required

## Recommendation

Upgrade vm2 to >=3.11.7, audit/block untrusted code, isolate affected services

## References

- [advisory] https://github.com/patriksimek/vm2/security/advisories/GHSA-fcqc-726x-5wfc
- [advisory] https://www.vulncheck.com/advisories/vm2-before-3.11.7-memory-disclosure-via-buffer-pool

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.