CVE-2023-29570

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-04-24 · updated 2026-06-17
Weakness: CWE-770

Description

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).

Affected products

Cesanta mJS: 2.20.0

References

https://github.com/cesanta/mjs/issues/240
https://github.com/z1r00/fuzz_vuln/blob/main/mjs/SEGV/mjs_fii2/readme.md
https://github.com/cesanta/mjs/issues/240
https://github.com/z1r00/fuzz_vuln/blob/main/mjs/SEGV/mjs_fii2/readme.md

Get alerted when CVE-2023-29570 or the next vulnerability affects your stack