What is CVE-2023-29574?

CVE-2023-29574 is a medium-severity vulnerability in Axiosys Bento4, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2023-04-12.

How severe is CVE-2023-29574?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2023-29574 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Axiosys Bento4

CVE-2023-29574

Bento4 v1.6.0-639 was discovered to contain an out-of-memory bug in the mp42avc component.

Vulnerability class: Buffer Overflow

Published 2023-04-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (19.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Axiosys Bento4 — versions 1.6.0-639

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

z1r00/fuzz_

References

github.com/axiomatic-systems/Bento4/issues/841 (Exploit, Third Party Advisory, Issue Tracking)
github.com/z1r00/fuzz_vuln/blob/main/Bento4/mp42avc/readme.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-29574?: CVE-2023-29574 is a medium-severity vulnerability in Axiosys Bento4, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2023-04-12.
How severe is CVE-2023-29574?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2023-29574 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.