Axiomatic Bento4 up to 1.6.0-641 DSI v1 Parser Ap4Dac4Atom.cpp AP4_BitReader::SkipBits n_presentations heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.29

Summaryinfo

A vulnerability was found in Axiomatic Bento4 up to 1.6.0-641. It has been classified as critical. Affected by this vulnerability is the function AP4_BitReader::SkipBits of the file Ap4Dac4Atom.cpp of the component DSI v1 Parser. Performing a manipulation of the argument n_presentations results in heap-based overflow. This vulnerability is reported as CVE-2026-5236. The attack requires a local approach. Moreover, an exploit is present. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability, which was classified as critical, was found in Axiomatic Bento4 up to 1.6.0-641. This affects the function AP4_BitReader::SkipBits of the file Ap4Dac4Atom.cpp of the component DSI v1 Parser. The manipulation of the argument n_presentations with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-5236. The exploitability is told to be easy. Attacking locally is a requirement. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-17729). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/31/2026 Advisory disclosed
03/31/2026 +0 days VulDB entry created
04/01/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: 1059
Status: Not defined

CVE: CVE-2026-5236 (🔒)
GCVE (CVE): GCVE-0-2026-5236
GCVE (VulDB): GCVE-100-354387
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/31/2026 16:14
Updated: 04/01/2026 04:57
Changes: 03/31/2026 16:14 (60), 04/01/2026 04:57 (1)
Complete: 🔍
Submitter: breakingbad
Cache ID: 216:C06:103

Submitinfo

Accepted

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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