Type Confusion Vulnerability in GPAC Before Version 26.02.0
CVE-2025-71469

6.8MEDIUM

Key Information:

Vendor

Gpac

Status
Gpac
Vendor
CVE Published:
15 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-71469?

A type confusion vulnerability exists in GPAC prior to version 26.02.0 within the ctxload_process() function. The flaw allows attackers to pass non-object descriptors to the ODS_SetupOD() function without appropriate checks on the descriptor tag. By supplying a maliciously crafted XMT file containing a URL-bearing descriptor, attackers can trigger a denial of service in MP4Box and other applications built on GPAC. This vulnerability poses a risk to application stability and can lead to crashes.

Affected Version(s)

gpac 0 < 26.02.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-71469 - Proof of Concept

References

https://github.com/gpac/gpac/issues/3271
issue-tracking
https://github.com/gpac/gpac/commit/62714f27c64a3d1eb7e88...
patch
https://github.com/gpac/gpac/blob/v2.4.0/src/filters/load...
technical-description

CVSS V4

Score:
6.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Alexander A. Shvedov (sigdevel)
Aurelien David
.