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CVE-2026-45411

Vm2 remote code execution

9.8 CRITICALPublic exploitEPSS 0.90%
  1. Published13 May 2026

Description

vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.3, it is possible to catch a host exception using the yield* expression inside an async generator. When the generator is closed using the return function, the value is awaited on and exceptions thrown in the then call will be caught by the runtime and passed to the yield* iterator as the next value. This allows attackers to write code which can escape from the VM2 sandbox and execute arbitrary commands on the host system. This vulnerability is fixed in 3.11.3.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Vm2< 3.11.3

Remediation

Fixed in
Vm2≥ 3.11.3

References

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Frequently asked

Is CVE-2026-45411 being actively exploited?

CVE-2026-45411 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.90%.

How severe is CVE-2026-45411?

CVE-2026-45411 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.90% probability of exploitation.

Which products are affected by CVE-2026-45411?

Affected products include Vm2.

How do I fix CVE-2026-45411?

Upgrade affected software to a fixed version, for example Vm2 3.11.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.