What is CVE-2018-14531?

CVE-2018-14531 is a critical-severity vulnerability in Axiosys Bento4, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2018-07-23.

How severe is CVE-2018-14531?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2018-14531 known to be exploited?

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

Buffer overflow in Axiosys Bento4

CVE-2018-14531

An issue was discovered in Bento4 1.5.1-624. There is an unspecified "heap-buffer-overflow" crash in the AP4_HvccAtom class in Core/Ap4HvccAtom.cpp.

Vulnerability class: Buffer Overflow

Published 2018-07-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.016 (74.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Axiosys Bento4 — versions 1.5.1-624

Weakness classification (CWE)

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

Public proof-of-concept exploits

References

github.com/axiomatic-systems/Bento4/issues/293 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-14531?: CVE-2018-14531 is a critical-severity vulnerability in Axiosys Bento4, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2018-07-23.
How severe is CVE-2018-14531?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-14531 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.