CVE-2025-55639

State: Published
Severity: 6.5 Medium
Published: Jun 23, 2026
Updated: Jun 26, 2026
Reserved: Aug 13, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://github.com/gpac/gpac/issues/3260
https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/23/23_poc.mp4
https://github.com/gpac/gpac/commit/027ce139dda498ee95df36db9f9f6f3cadce8ec9
https://infosec.exchange/@sigdevel/116769184815236865
http://www.openwall.com/lists/oss-security/2026/06/26/2

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