CVE-2026-5236 | Axiomatic Bento4 up to 1.6.0-641 DSI v1 Parser Ap4Dac4Atom.cpp AP4_BitReader::SkipBits n_presentations heap-based overflow (Issue 1059)

VDB-354387 · CVE-2026-5236 · ISSUE 1059 AXIOMATIC BENTO4 UP TO 1.6.0-641 DSI V1 PARSER AP4DAC4ATOM.CPP AP4_BITREADER::SKIPBITS N_PRESENTATIONS HEAP-BASED OVERFLOW HISTORYDIFFRELATEJSONXMLCTI 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. Productinfo Type Multimedia Player Software Vendor Axiomatic Name Bento4 Version 1.6.0-641 License free 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 Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock 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: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock 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 03/31/2026 +0 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 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/31/2026 16:14 Changes: 03/31/2026 16:14 (60) Complete: 🔍 Submitter: breakingbad Cache ID: 99:CCB:101 Submitinfo Accepted Submit #780473: Bento4 <=1.6.0-641 Memory Corruption (by breakingbad) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸