Critical severity · published Sep 17, 2026
CVE-2026-92947
vm2 before 3.11.7 Memory Disclosure via Buffer Pool
10.0
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VM
vm2 · patriksimek
before 3.11.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-92947
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-92947
github.com
https://github.com/patriksimek/vm2/security/advisories/GHSA-fcqc-726x-5wfc
www.vulncheck.com
https://www.vulncheck.com/advisories/vm2-before-3.11.7-memory-disclosure-via-buffer-pool
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