What is CVE-2026-4185?

CVE-2026-4185 is a medium-severity vulnerability in Gpac, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.3/10. Published 2026-03-16.

How severe is CVE-2026-4185?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Buffer overflow in Gpac

CVE-2026-4185

A vulnerability was found in GPAC up to 2.5-DEV-rev2167-gcc9d617c0-master. This vulnerability affects the function swf_def_bits_jpeg of the file src/scene_manager/swf_parse.c of the component MP4Box. The manipulation of the argument szName…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (26.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

N/a Gpac — versions 2.5-DEV-rev2167-gcc9d617c0-master

Weakness classification (CWE)

References

VDB-351091 | GPAC MP4Box swf_parse.c swf_def_bits_jpeg stack-based overflow (technical-description, vdb-entry)
VDB-351091 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #769840 | gpac MP4Box MP4Box - GPAC version 2.5-DEV-rev2167-gcc9d617c0-master and earlier Stack-based Buffer Overflow (third-party-advisory)
cna@vuldb.com (issue-tracking)
cna@vuldb.com (exploit)
cna@vuldb.com (patch)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-4185?: CVE-2026-4185 is a medium-severity vulnerability in Gpac, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.3/10. Published 2026-03-16.
How severe is CVE-2026-4185?: Medium severity. CVSS v3 base score is 6.3 out of 10.