Security readout for executives and security teams
Plain-English summary
CVE-2020-24347 is an out-of-bounds read in njs, a JavaScript engine used with NGINX. The public bundle says versions through 0.4.3 are affected, but it does not provide CVSS, impact details, or confirmed active exploitation.
Executive priority
Treat as a targeted inventory and vendor-guidance item, not an emergency based on the supplied evidence. Prioritize internet-facing NGINX services and NetApp assets, then remediate according to official advisories.
Technical view
The issue is described in njs_lvlhsh_level_find in njs_lvlhsh.c. Source evidence identifies an out-of-bounds read in njs through 0.4.3, with an NGINX njs GitHub issue and a NetApp advisory referenced. No CWE, CVSS vector, exploit status, or concrete remediation is included in the bundle.
Likely exposure
Likely exposure is environments using njs through 0.4.3 with NGINX, or vendor products covered by the referenced NetApp advisory. The bundle does not identify specific NetApp products or deployment conditions.
Exploitation context
The CVE is not listed as KEV in the provided data, and the bundle cites no active exploitation. Public references exist, so defenders should assume the bug details are discoverable, but not infer exploitation without vendor or KEV confirmation.
Researcher notes
Evidence is thin: no CVSS, CWE, impact range, or patch statement is present in the bundle. Analysis should stay anchored to njs through 0.4.3 and the named function until vendor sources confirm exploitability, affected configurations, and fixes.
Mitigation direction
- Inventory NGINX deployments for njs and record exact njs versions.
- Review the NGINX njs issue for vendor status and fix guidance.
- Review the NetApp advisory for affected product guidance.
- Move off njs 0.4.3 or earlier only where vendor guidance supports it.
- Disable unnecessary njs usage after operational review.
Validation and detection
- Check package manifests or runtime metadata for njs version through 0.4.3.
- Confirm whether NGINX configurations load or depend on njs.
- Map any NetApp assets against the referenced advisory.
- Document whether public-facing services use affected njs functionality.
- Track remediation status separately from base NGINX version.
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.
CVE-2020-24347 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/nginx/njs/issues/323CVE reference · x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20200918-0001/CVE reference · x_refsource_CONFIRM
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.