CVE-2025-71469

GPAC before 26.02.0 Type Confusion DoS via XMT/BT Scene Loader

Published Nov 15, 2026 CVSS 4.0 · 6.8 Medium EPSS n/a KEV · Not listed

Description

GPAC before 26.02.0 contains a type confusion vulnerability in ctxload_process() that passes non-object descriptors to ODS_SetupOD() without checking the descriptor tag. Attackers can supply a crafted XMT file with a URL-bearing descriptor that crashes MP4Box or other GPAC-based applications in gf_scene_ns_connect_object(), causing denial of service.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

gpac

unaffected

Version	Status	Constraints
`0`	affected	< 26.02.0

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/gpac/gpac/blob/v2.4.0/src/filters/load_bt_xmt.c#L649-L656
https://github.com/gpac/gpac/commit/62714f27c64a3d1eb7e880f9eed2d38673cb43ce
https://github.com/gpac/gpac/issues/3271
https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/30/30_compositor_scene_ns_c_479_in_gf_scene_ns_connect_object
https://www.vulncheck.com/advisories/gpac-before-26.02.0-type-confusion-dos-via-xmt-bt-scene-loader

History

Nov 15, 2026 4:00 PM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		GPAC before 26.02.0 contains a type confusion vulnerability in ctxload_process() that passes non-object descriptors to ODS_SetupOD() without checking the descriptor tag. Attackers can supply a crafted XMT file with a URL-bearing descriptor that crashes MP4Box or other GPAC-based applications in gf_scene_ns_connect_object(), causing denial of service.
Title		GPAC before 26.02.0 Type Confusion DoS via XMT/BT Scene Loader
First Time appeared		Gpac Gpac gpac
Weaknesses		CWE-843
CPEs		cpe:2.3:a:gpac:gpac::::::::
Vendors & Products		Gpac Gpac gpac
References		https://github.com/gpac/gpac/blob/v2.4.0/src/filters/load_bt_xmt.c#L649-L656 https://github.com/gpac/gpac/commit/62714f27c64a3d1eb7e880f9eed2d38673cb43ce https://github.com/gpac/gpac/issues/3271 https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/30/30_compositor_scene_ns_c_479_in_gf_scene_ns_connect_object https://www.vulncheck.com/advisories/gpac-before-26.02.0-type-confusion-dos-via-xmt-bt-scene-loader
Metrics		cvssV3_1 `{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}` cvssV4_0 `{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}`