What is CVE-2019-6966?

CVE-2019-6966 is a medium-severity vulnerability in Axiosys Bento4, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2019-01-25.

How severe is CVE-2019-6966?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2019-6966 known to be exploited?

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

Resource exhaustion in Axiosys Bento4

CVE-2019-6966

An issue was discovered in Bento4 1.5.1-628. The AP4_ElstAtom class in Core/Ap4ElstAtom.cpp has an attempted excessive memory allocation related to AP4_Array<AP4_ElstEntry>::EnsureCapacity in Core/Ap4Array.h, as demonstrated by mp42hls.

Published 2019-01-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (65.9th percentile), scored 2026-10-04.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.012 · change: -0.001

Affected products

Axiosys Bento4 — versions 1.5.1-628

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

Public proof-of-concept exploits

References

github.com/axiomatic-systems/Bento4/issues/361 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-6966?: CVE-2019-6966 is a medium-severity vulnerability in Axiosys Bento4, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2019-01-25.
How severe is CVE-2019-6966?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2019-6966 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.