CVE-2019-10761Public exploitNetwork attack vector

Arbitrary code execution via uncontextified host RangeError

Published Jul 13, 2022 · Updated Sep 16, 2024

Sandbox escape in Patrik Simek vm2 before 3.6.11 allows attackers to execute arbitrary host code through crafted JavaScript. The value-conversion paths return a host RangeError to sandbox code without contextifying it, exposing its constructor chain and process.mainModule. Execution requires an application to run attacker-controlled JavaScript in vm2; successful escape permits child_process creation with the host process's privileges.

CVSS severity8.3
High
EPSS probability1.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sandbox escape in Patrik Simek vm2 before 3.6.11 allows attackers to execute arbitrary host code through crafted JavaScript. The value-conversion paths return a host RangeError to sandbox code without contextifying it, exposing its constructor chain and process.mainModule. Execution requires an application to run attacker-controlled JavaScript in vm2; successful escape permits child_process creation with the host process's privileges.

The record

CVE
CVE-2019-10761
Published
Jul 13, 2022
Updated
Sep 16, 2024
Vendor
Patrik Simek
Product
vm2
Classifications
CWE-674, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <3.6.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Patrik Simek · vm2version=unspecified <3.6.11

Published CVSS scores

8.3SnykCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-674Uncontrolled Recursion
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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