ZDI-26-283: GStreamer qtdemux Stack-based Buffer Overflow Remote Code Execution Vulnerability

Published Apr 15, 2026

Updated

This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-5056.

Affected Software

1 affected component

GStreamer GStreamer qtdemux

Event History

Apr 15, 2026

Advisory Published

via ZDI·05:00 AM

Data Sourced

via ZDI·05:00 AM

Description

Frequently Asked Questions

What is the severity of ZDI-26-283?

The severity of ZDI-26-283 is critical due to its potential for remote code execution.

How do I fix ZDI-26-283?

To fix ZDI-26-283, update GStreamer to the latest version provided by the vendor.

What causes the ZDI-26-283 vulnerability?

ZDI-26-283 is caused by a stack-based buffer overflow in the GStreamer qtdemux component.

Who is affected by the ZDI-26-283 vulnerability?

Any installations of GStreamer that utilize the qtdemux component are affected by ZDI-26-283.

Can ZDI-26-283 be exploited remotely?

Yes, ZDI-26-283 can be exploited remotely when the vulnerable GStreamer component is used.

Company

Resources

Contact

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