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CVE-2026-33144

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CVE-2026-33144

Published: Mar 20, 2026

Modified: Mar 20, 2026

PUBLISHED

CVSS v3.1

5.8

MEDIUM

Description

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.

VendorProductVersions

gpac

gpac

affected
< 86b0e36ea4c71402fbdaf7e13d73ba8841003e72

Weaknesses (CWE)

CWE-787

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:H

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

High

References

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