CVE-2021-23449
Sandbox Bypass
CRITICAL
10
CVSS Score
Published: October 18, 2021 at 04:40 PM UTC
Updated: June 17, 2026 at 03:38 AM UTC
1 product affected across 1 vendorVM2
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Severity
CRITICAL10
Exploit prediction
EPSS 4%
Description
This affects the package vm2 before 3.9.4 via a Prototype Pollution attack vector, which can lead to execution of arbitrary code on the host machine.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
95%
v < 3.9.4
Affected range stops below 3.9.4, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (5)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/patriksimek/vm2/commit/b4f6e2bd2c4a1ef52fc4483d8e35f28bc4481886x_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/patriksimek/vm2/issues/363x_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/patriksimek/vm2/releases/tag/3.9.4x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20211029-0010/x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JS-VM2-1585918CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-1321
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