The AP4_FtypAtom class in Core/Ap4FtypAtom.cpp in Bento4 1.5.1.0 has an Infinite loop via a crafted MP4 file that triggers size mishandling.

published 2018-01-05 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-17035

cvss: 7.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits: 0; none known

Exploit prediction

1.01% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

github.com https://github.com/axiomatic-systems/Bento4/issues/233 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.0	7.8	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-835 Loop with Unreachable Exit Condition

References

github.com /axiomatic-systems/Bento4/issues/233
exploit, third-party-advisory

Sources

CVE List CVE-2018-5253
NVD CVE-2018-5253

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary