CVE-2026-4185 | THREATINT

Description

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 results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used. The patch is identified as 8961c74f87ae3fe2d3352e622f7730ca96d50cf1. A patch should be applied to remediate this issue.

PUBLISHED Reserved 2026-03-14 | Published 2026-03-15 | Updated 2026-03-17 | Assigner VulDB

MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C

Problem types

Stack-based Buffer Overflow

Memory Corruption

Timeline

2026-03-14:	Advisory disclosed
2026-03-14:	VulDB entry created
2026-03-14:	VulDB entry last update

Credits

peterx (VulDB User) reporter

References

vuldb.com/?id.351091 (VDB-351091 | GPAC MP4Box swf_parse.c swf_def_bits_jpeg stack-based overflow) vdb-entry technical-description

vuldb.com/?ctiid.351091 (VDB-351091 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.769840 (Submit #769840 | gpac MP4Box MP4Box - GPAC version 2.5-DEV-rev2167-gcc9d617c0-master and earlier Stack-based Buffer Overflow) third-party-advisory

github.com/gpac/gpac/issues/3436 issue-tracking

github.com/PeterXukt/test_pocs/blob/main/gpac/test.swf exploit

github.com/...ommit/8961c74f87ae3fe2d3352e622f7730ca96d50cf1 patch

github.com/gpac/gpac/ product

cve.org (CVE-2026-4185)

nvd.nist.gov (CVE-2026-4185)

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