CVE-2025-55653

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: 2026-10-16 · updated 2026-10-28
Weakness: CWE-369

Description

GPAC MP4Box v2.4 was discovered to contain a floating point exception in the gf_parse_lfrac function (utils/error.c). Processing a crafted MP4 file containing a zero-denominator fraction string causes gf_parse_lfrac() to divide by zero, terminating the process with SIGFPE.

References

https://github.com/gpac/gpac/commit/4bbb6e5
https://github.com/gpac/gpac/issues/3247
https://infosec.exchange/@sigdevel/116769079013422405
http://www.openwall.com/lists/oss-security/2026/10/17/4

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