CVE-2026-5235 MEDIUM

CVE-2026-5235: Axiomatic Bento4 MP4 File Ap4Dac4Atom.cpp ReadCache heap-based overflow

Vendor Axiomatic
Product Bento4
Weakness CWE-122
Published March 31, 2026
Last update April 1, 2026

CVSS base score

4.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was determined in Axiomatic Bento4 up to 1.6.0-641. This impacts the function AP4_BitReader::ReadCache of the file Ap4Dac4Atom.cpp of the component MP4 File Parser. This manipulation causes heap-based buffer overflow. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

Key dates

02Disclosure timeline

March 31, 2026 CVE published
April 1, 2026 Record updated