Vulnerability DatabaseCVE-2026-124030
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CVE-2026-124030
Published:November 06, 2026
Updated:November 09, 2026
GPAC through 26.07.0 contains a type confusion vulnerability in gf_sg_command_apply() in src/scenegraph/commands.c that fails to verify BIFS field-replace command types match target node fields. Attackers can supply a crafted XMT file opened with MP4Box, such as via chapter import, causing gf_sg_vrml_field_clone() to memcpy from invalid pointers and crash.
Related Resources (8)
https://github.com/gpac/gpac
https://www.vulncheck.com/advisories/gpac-through-26.07.0-type-confusion-via-gf-sg-command-apply-xmt-field-replace
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/124xxx/CVE-2026-124030.json
https://github.com/gpac/gpac/blob/v26.07.0/src/scenegraph/commands.c#L321
https://github.com/gpac/gpac/issues/4032
https://nvd.nist.gov/vuln/detail/CVE-2026-124030
https://github.com/gpac/gpac/commit/1359c4da9329cedceeb8fcfeab6d97e0927236e1
https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/224/224_gf_sg_command_apply_scenegraph_commands_c_346.xmt
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CVSS v4
Base Score:
6.8
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.5
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Access of Resource Using Incompatible Type
CWE-843
EPSS
Base Score:
0.12