Description
A segmentation violation in the dump_isom_saps function (/mp4box/filedump.c) of GPAC MP4Box v2.5-DEV-rev1672-gc9a31d0e1-masterallows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.
References7
- github.com/gpac/gpac/commit/e6d01820d7bf3967d931fedb379ee5f209b…
- github.com/gpac/gpac/issues/3321
- github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/57/57_dump_i…
- infosec.exchange/@sigdevel/117456648463009125
- www.openwall.com/lists/oss-security/2026/10/20/8
- github.com/gpac/gpac/issues/3321
- github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/57/57_dump_i…
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 16 · as of 10 November 2026
- CWE
- CWE-119
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.