TI-2023-13924 Aliases CVE-2023-29570 GHSA-qmx9-67mw-5ghq

Cesanta MJS v2.20.0 was discovered to contain a SEGV vulnerability via mjs_ffi_cb_free at…

MEDIUM 58CWE-770Published 2023-04-24 · Updated 2025-02-04

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-770.

Summary

Cesanta MJS v2.20.0 was discovered to contain a SEGV vulnerability via mjs_ffi_cb_free at src/mjs_ffi.c. This vulnerability can lead to a Denial of Service (DoS).

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00287 21st percentileScored 2026-11-07

Public exploit Yes 2 exploit referencesTagged 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: No
Technical impact: Partial

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cesanta:mjs:2.20.0:::::::*	2.20.0	Vulnerable	Cesanta

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

2026-10-02 Threatist record created from CVE-2023-29570
2026-10-03 Alias added: GHSA-qmx9-67mw-5ghq

References

Exploit 2

TI-2023-23198 Cesanta mjs v2.20.0 was discovered to contain a function pointer hijacking vulnerability… CVSS 3.1CRITICAL 9.8
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

See all 83 →

Sources

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