CVE-2026-5236 Details
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.
A heap-based buffer overflow vulnerability has been identified in Axiomatic Bento4 versions through 1.6.0-641. The issue arises in the DSI v1 parser within the AP4_Dac4Atom constructor, specifically when the AP4_BitReader::SkipBits function processes the n_presentations argument. This vulnerability allows a crafted MP4 file to cause the parser to read beyond the allocated heap buffer, leading to out-of-bounds memory access. The vulnerability requires local exploitation, and a public exploit is available.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Mar 31, 2026CISA-ADP
Assessed Apr 3, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/axiomatic-systems/Bento4/issues/1059 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://github.com/axiomatic-systems/Bento4/issues/1059#issue-4078584738 | [email protected] | ExploitIssue TrackingTechnical DescriptionVendor |
| https://vuldb.com/submit/780473 | [email protected] | Technical Description |
| https://vuldb.com/vuln/354387 | [email protected] | AdvisoryExploitPartial Content |
| https://vuldb.com/vuln/354387/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-122 | Heap-based Buffer Overflow | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Axiomatic Bento4 | <= 1.6.0-641 (semver) |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Mar 31, 2026 | New CVE Received | [email protected] |