CVE-2025-6663: GStreamer H266 Codec Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
GStreamer H266 Codec Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. 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 specific flaw exists within the parsing of H266 sei messages. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27381.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-6663?
CVE-2025-6663 is considered a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2025-6663?
To mitigate CVE-2025-6663, update GStreamer to the latest version where the vulnerability has been patched.
What software is affected by CVE-2025-6663?
CVE-2025-6663 affects all versions of the GStreamer library.
What type of vulnerability is CVE-2025-6663?
CVE-2025-6663 is a stack-based buffer overflow vulnerability that can lead to remote code execution.
What does CVE-2025-6663 allow an attacker to do?
CVE-2025-6663 allows remote attackers to execute arbitrary code on affected installations of GStreamer.