Medium severity · published Mar 15, 2026
CVE-2026-4185
GPAC MP4Box swf_parse.c swf_def_bits_jpeg stack-based overflow
6.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GP
GPAC · Gpac
2.5-DEV-rev2167-gcc9d617c0-master · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4185
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4185
github.com
https://github.com/PeterXukt/test_pocs/blob/main/gpac/test.swf
github.com
https://github.com/gpac/gpac/
github.com
https://github.com/gpac/gpac/commit/8961c74f87ae3fe2d3352e622f7730ca96d50cf1
github.com
https://github.com/gpac/gpac/issues/3436
vuldb.com
https://vuldb.com/?ctiid.351091
vuldb.com
https://vuldb.com/?id.351091
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