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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.

PUBLISHED Reserved 2026-03-31 | Published 2026-03-31 | Updated 2026-04-03 | Assigner VulDB




MEDIUM: 4.8CVSS: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
MEDIUM: 5.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 5.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
4.3AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Heap-based Buffer Overflow

Memory Corruption

Product status

1.6.0-641
affected

Timeline

2026-03-31:Advisory disclosed
2026-03-31:VulDB entry created
2026-03-31:VulDB entry last update

Credits

breakingbad (VulDB User) reporter

References

vuldb.com/vuln/354387 (VDB-354387 | Axiomatic Bento4 DSI v1 Ap4Dac4Atom.cpp SkipBits heap-based overflow) vdb-entry technical-description

vuldb.com/vuln/354387/cti (VDB-354387 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/780473 (Submit #780473 | Bento4 <=1.6.0-641 Memory Corruption) third-party-advisory

github.com/axiomatic-systems/Bento4/issues/1059 issue-tracking

github.com/axiomatic-systems/Bento4/issues/1059 exploit issue-tracking

cve.org (CVE-2026-5236)

nvd.nist.gov (CVE-2026-5236)

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