An issue was discovered in Bento4 1.5.1-627. The AP4_StcoAtom class in Core/Ap4StcoAtom.cpp has an attempted excessive memory allocation when called from AP4_AtomFactory::CreateAtomFromStream in Core/Ap4AtomFactory.cpp, as demonstrated by mp42hls.
Severity
CVSS 3.0
6.5 medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)