PT-2026-51526 · Undefined · Undefined

Published 2026-06-23 · Updated 2026-06-23 · CVE-2025-55639

NVD

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

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.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2025-55639

Affected Products

Undefined

References · 5

• 🔥 https://github.com/gpac/gpac/issues/3260 · Exploit
• 🔥 https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/23/23_poc.mp4 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-55639 · Security Note
• https://github.com/gpac/gpac/commit/027ce139dda498ee95df36db9f9f6f3cadce8ec9 · Note
• https://infosec.exchange/@sigdevel/116769184815236865 · Note