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TI-2023-23198 Aliases CVE-2023-43338GHSA-92m7-86f6-r2hj

Cesanta mjs v2.20.0 was discovered to contain a function pointer hijacking vulnerability…

Priority HIGH 82CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Cesanta mjs v2.20.0 was discovered to contain a function pointer hijacking vulnerability via the function mjs_get_ptr(). This vulnerability allows attackers to execute arbitrary code via a crafted input.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00987 62nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cesanta:mjs:2.20.0:*:*:*:*:*:*:*2.20.0VulnerableCesanta
  • cpe:2.3:a:cesanta:mjs:2.20.0:*:*:*:*:*:*:* Versions 2.20.0 Vulnerable ·Cesanta

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-43338
  2. 2026-10-03 Alias added: GHSA-92m7-86f6-r2hj

References

Exploit 1

  • TI-2023-27057 An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via… CVSS 3.1HIGH 7.5
  • TI-2023-27055 An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via… CVSS 3.1HIGH 7.5
  • TI-2023-27054 An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs+0x4ec508 component. CVSS 3.1HIGH 7.5
  • TI-2023-27056 An Out of Bounds Write in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial… CVSS 3.1HIGH 7.5
  • TI-2023-27053 An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via… CVSS 3.1HIGH 7.5
  • TI-2024-23407 An issue in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via… CVSS 3.1MEDIUM 5.5
See all 83 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences