What is CVE-2019-13959?

CVE-2019-13959 is a medium-severity vulnerability in Axiosys Bento4, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2019-07-18.

How severe is CVE-2019-13959?

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

Is CVE-2019-13959 known to be exploited?

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

NULL pointer dereference in Axiosys Bento4

CVE-2019-13959

In Bento4 1.5.1-627, AP4_DataBuffer::SetDataSize does not handle reallocation failures, leading to a memory copy into a NULL pointer. This is different from CVE-2018-20186.

Published 2019-07-18 · 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 (66.1th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Axiosys Bento4 — versions 1.5.1-627

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

s-cube-xmu/Bug_

References

github.com/axiomatic-systems/Bento4/issues/394 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-13959?: CVE-2019-13959 is a medium-severity vulnerability in Axiosys Bento4, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2019-07-18.
How severe is CVE-2019-13959?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2019-13959 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.