CVE-2026-33144

Published: Mar 20, 2026 Last Modified: Mar 20, 2026

ExploitDB:

Other exploit source:

Google Dorks:

MEDIUM 5,8

Source: [email protected]

Attack Vector: local

Attack Complexity: high

Privileges Required: none

User Interaction: required

Scope: unchanged

Confidentiality: low

Integrity: low

Availability: high

Description

AI Translation Available

GPAC is an open-source multimedia framework. Prior to commit 86b0e36, a heap-based buffer overflow (write) vulnerability was discovered in GPAC MP4Box. The vulnerability exists in the gf_xml_parse_bit_sequence_bs function in utils/xml_bin_custom.c when processing a crafted NHML file containing malicious <BS> (BitSequence) elements. An attacker can exploit this by providing a specially crafted NHML file, causing an out-of-bounds write on the heap. This issue has been via commit 86b0e36.

787

Out-of-bounds Write

Draft

Abstraction: Base Structure: Simple

Common Consequences

Security Scopes Affected:

Integrity Availability Other

Potential Impacts:

Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State

Applicable Platforms

Languages: Assembly, C, C++, Memory-Unsafe

Technologies: ICS/OT

Likelihood of Exploit: High

View CWE Details

https://github.com/gpac/gpac/security/advisories/GHSA-3jw5-…

https://github.com/gpac/gpac/security/advisories/GHSA-3jw5-9pmw-vmfg

https://github.com/gpac/gpac/commit/86b0e36ea4c71402fbdaf7e…

https://github.com/gpac/gpac/commit/86b0e36ea4c71402fbdaf7e13d73ba8841003e72