CVE-2026-5236
Axiomatic Bento4 DSI v1 Ap4Dac4Atom.cpp SkipBits heap-based overflow
- State
- Published
- Severity
- 4.8 Medium
- Published
- Mar 31, 2026
- Updated
- Apr 3, 2026
- Reserved
- Mar 31, 2026
Description
A vulnerability was identified in Axiomatic Bento4 up to 1.6.0-641. Affected is the function AP4_BitReader::SkipBits of the file Ap4Dac4Atom.cpp of the component DSI v1 Parser. Such manipulation of the argument n_presentations leads to heap-based buffer overflow. The attack needs to be performed locally. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | 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 | VulDB |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 5.3 Medium | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 4.3 Medium | AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
Bento4Axiomatic |
|
References
- VDB-354387 | Axiomatic Bento4 DSI v1 Ap4Dac4Atom.cpp SkipBits heap-based overflowvdb-entrytechnical-description
- VDB-354387 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #780473 | Bento4 <=1.6.0-641 Memory Corruptionthird-party-advisory
- https://github.com/axiomatic-systems/Bento4/issues/1059issue-tracking
- https://github.com/axiomatic-systems/Bento4/issues/1059#issue-4078584738exploitissue-tracking
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