CVE-2025-55664

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-01 · updated 2026-07-22
Weakness: CWE-122

Description

A heap buffer overflow in the m2tsdmx_send_packet function (filters/dmx_m2ts.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

References

https://github.com/gpac/gpac/commit/9bd6a72c9efc0513dfd33b87498afc7658dabd26
https://github.com/gpac/gpac/issues/3310
https://infosec.exchange/@sigdevel/116659245751279377
http://www.openwall.com/lists/oss-security/2026/06/01/10

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