CVE-2026-18295: GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of MRF files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
— ZDI
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/gst-plugins-good1.0to a version that resolves this vulnerability.Fixed in 1.28.7-1 - Compensating control
ZDI-CAN-29510: Since user interaction is required (victim must visit a malicious page or open a malicious file), reduce risk by blocking or warning on opening untrusted/malicious files and restricting access to untrusted web content (e.g., via web/file filtering and user awareness).
Event History
Frequently Asked Questions
What user action is required for exploitation?
The target must visit a malicious page or open a malicious file. Exploitation requires this user interaction.
What type of attacker-controlled content triggers the issue?
The flaw is triggered while parsing MRF files containing insufficiently validated user-supplied data. This can cause a write past the end of an allocated buffer.
What level of access could successful exploitation provide?
An attacker can execute arbitrary code in the context of the current process. The reported impact includes high confidentiality, integrity, and availability impact.