CVE-2026-18295

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. 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. Was ZDI-CAN-29510.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector : AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gstreamer.freedesktop.org/security/sa-2026-0050.html	Patch Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-26-463/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*

History

26 Oct 2026, 10:10

Type	Values Removed	Values Added
Summary		(es) Vulnerabilidad de ejecución remota de código por escritura fuera de límites en el análisis de archivos MRF de GStreamer. Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en instalaciones afectadas de GStreamer. Se requiere interacción del usuario para explotar esta vulnerabilidad, ya que el objetivo debe visitar una página maliciosa o abrir un archivo malicioso. La falla específica existe dentro del análisis de archivos MRF. El problema resulta de la falta de validación adecuada de los datos proporcionados por el usuario, lo que puede resultar en una escritura más allá del final de un búfer asignado. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del proceso actual. Fue ZDI-CAN-29510.

Information

Published : 2026-08-20 17:17

Updated : 2026-10-26 10:10

NVD link : CVE-2026-18295

Mitre link : CVE-2026-18295

CVE.ORG link : CVE-2026-18295

JSON object : View

Products Affected

gstreamer

gstreamer

CWE

CWE-787

Out-of-bounds Write

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