Security readout for executives and security teams
Plain-English summary
vm2 is a Node.js sandbox used to run JavaScript with restrictions. This flaw lets code already running inside that sandbox escape and run arbitrary code on the host. The vendor advisory states there are no patches or known workarounds, so continued use of affected vm2 versions carries serious business risk.
Executive priority
Prioritize removal or replacement where vm2 protects customer, tenant, automation, or plugin code execution. Because the advisory names no patch or workaround, accepting continued exposure should require explicit risk ownership.
Technical view
CVE-2023-37903 affects vm2 versions up to and including 3.9.19. A Node.js custom inspect behavior can break sandbox isolation, enabling arbitrary code execution outside vm2 when an attacker can already execute code inside the sandbox context. The listed weakness is CWE-78, with CVSS 9.8 critical severity.
Likely exposure
Highest exposure is in Node.js applications, plugin systems, automation platforms, or SaaS features that use vm2 to evaluate untrusted or tenant-supplied JavaScript. Exposure may also exist through transitive dependencies or vendor products referencing the advisory.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. The key precondition is attacker-controlled code execution inside a vm2 sandbox. If that exists, the impact can become host-level remote code execution.
Researcher notes
Do not treat this as unauthenticated network RCE unless the application exposes attacker-controlled execution inside vm2. Focus validation on dependency reachability, sandbox entry points, deployed versions, and whether untrusted input can reach those contexts.
Mitigation direction
- Inventory all direct and transitive vm2 dependencies.
- Replace vm2 with alternative software, as vendor guidance advises.
- Remove or disable untrusted JavaScript execution paths where feasible.
- Check vendor advisories for affected third-party products.
- Use isolation controls only as temporary risk reduction, not a fix.
Validation and detection
- Review package manifests, lockfiles, and SBOMs for vm2 <= 3.9.19.
- Map all features that execute user-supplied code inside vm2.
- Confirm vm2 removal or replacement in deployed builds.
- Review NetApp and other vendor advisories for product-specific exposure.
- Document any remaining sandbox usage and compensating controls.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-37903 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/patriksimek/vm2/security/advisories/GHSA-g644-9gfx-q4q4CVE reference · x_refsource_CONFIRM
- https://security.netapp.com/advisory/ntap-20230831-0007/CVE reference
- https://security.netapp.com/advisory/ntap-20241108-0002/CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.