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CRITICAL

CVE-2026-92947

CVSS v3

10

CRITICAL

EPSS Score

0.5 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

vm2 before 3.11.7 exposes Node's shared Buffer pool to sandboxed code, allowing disclosure of host memory used by Buffer.from, Buffer.concat, and related allocations. Sandboxed code can read and write to host-realm buffers by acquiring ArrayBuffers from small allocations, leading to sensitive data exposure and potential denial-of-service.

Technical details

Published
2026-09-17
Last Modified
2026-09-17

Frequently asked questions

What is CVE-2026-92947?

vm2 before 3.11.7 exposes Node's shared Buffer pool to sandboxed code, allowing disclosure of host memory used by Buffer.from, Buffer.concat, and related allocations. Sandboxed code can read and write to host-realm buffers by acquiring ArrayBuffers from small allocations, leading to sensitive data exposure and potential denial-of-service.

Is CVE-2026-92947 actively exploited?

Active exploitation of CVE-2026-92947 has not been confirmed. Its EPSS score was 0.5% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-92947?

CVE-2026-92947 has a CVSS v3 base score of 10 (CRITICAL severity).

Is CVE-2026-92947 affecting your environment?

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