What is CVE-2023-46931?

CVE-2023-46931 is a medium-severity vulnerability in Gpac, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2023-11-01.

How severe is CVE-2023-46931?

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

Buffer overflow in Gpac

CVE-2023-46931

GPAC 2.3-DEV-rev605-gfc9e29089-master contains a heap-buffer-overflow in ffdmx_parse_side_data /afltest/gpac/src/filters/ff_dmx.c:202:14 in gpac/MP4Box.

Vulnerability class: Buffer Overflow

Published 2023-11-01 · 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: 0.002 (9.6th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 9.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Gpac — versions 2.3-dev-rev605-gfc9e29089-master

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/gpac/gpac/issues/2664 (Vendor Advisory)
github.com/gpac/gpac/commit/671976fccc971b3dff8d3dcf6ebd600472ca64bf. (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-46931?: CVE-2023-46931 is a medium-severity vulnerability in Gpac, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2023-11-01.
How severe is CVE-2023-46931?: Medium severity. CVSS v3 base score is 5.5 out of 10.