CVE-2023-29569

MEDIUMNVD 5.55.5—Elevated

5.5

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

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 22.4%
KEV: Not listed

Published

April 14, 2023

Last Modified

February 6, 2025

References (4)

cve@mitrehttps://github.com/cesanta/mjs/issues/239
cve@mitrehttps://github.com/z1r00/fuzz_vuln/blob/main/mjs/SEGV/mjs_ffi/readme.md
af854a3a-2127-422b-91ae-364da2661108https://github.com/cesanta/mjs/issues/239
af854a3a-2127-422b-91ae-364da2661108https://github.com/z1r00/fuzz_vuln/blob/main/mjs/SEGV/mjs_ffi/readme.md

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-476NULL Pointer Dereference

Data Freshness Timeline

(refreshed 17× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2023-29569?

CVE-2023-29569 is a medium vulnerability published on April 14, 2023. Cesanta MJS v2.20.0 was discovered to contain a SEGV vulnerability via fficbimplwpwwwww at src/mjsffi.c. This vulnerability can lead to a Denial of Service (DoS).

When was CVE-2023-29569 disclosed?

CVE-2023-29569 was first published in the National Vulnerability Database on April 14, 2023, with the most recent update on February 6, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-29569 actively exploited?

CVE-2023-29569 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-29569?

CVE-2023-29569 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2023-29569?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-29569, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-29569

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-29569?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (4)

Frequently asked(5)

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