CVE-2025-55639
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.4%
exploitation probability
0.4%top 69% of all CVEs
observed exploitation
nono source reports it
GPAC MP4Box v2.4 was discovered to contain a NULL pointer dereference in the gf_isom_add_track_kind() function at isomedia/isom_write.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products
n/a · n/aReferences
https://github.com/gpac/gpac/commit/027ce139dda498ee95df36db9f9f6f3cadce8ec9https://github.com/gpac/gpac/issues/3260https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/23/23_poc.mp4https://infosec.exchange/@sigdevel/116769184815236865http://www.openwall.com/lists/oss-security/2026/06/26/2