CVE-2026-18295
Received Received - Intake

GStreamer MRF File Parsing Out-of-Bounds Write RCE

Publication date: 2026-08-20

Last updated on: 2026-08-20

Assigner: Zero Day Initiative

Description
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 Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-20
Last Modified
2026-08-20
Generated
2026-08-20
AI Q&A
2026-08-20
EPSS Evaluated
N/A
NVD
CVE-2026-18295
EUVD
EUVD-2026-63444

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
gst gst *-*
gstreamer gstreamer to 2026-07-29 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a vulnerability in GStreamer that allows remote attackers to execute arbitrary code on affected systems. The issue occurs during the parsing of MRF files due to improper validation of user-supplied data, which can lead to an out-of-bounds write. Exploitation requires user interaction, such as visiting a malicious page or opening a malicious file.

Detection Guidance

Detecting this vulnerability requires checking for outdated GStreamer versions. Use commands like 'gst-inspect-1.0 --version' to check the installed version. Compare it against the patched version mentioned in GStreamer's security advisory SA-2026-0050.

Impact Analysis

An attacker could exploit this vulnerability to execute code in the context of the current process, potentially gaining control over the affected system. This could lead to unauthorized access, data theft, or further compromise of the system.

Compliance Impact

This vulnerability could lead to unauthorized code execution, potentially exposing sensitive data processed by GStreamer. For GDPR, it may result in data breaches requiring notification under Article 33. For HIPAA, it could compromise protected health information if exploited in healthcare systems.

Mitigation Strategies

Immediately update GStreamer to the latest version as specified in the vendor's security advisory SA-2026-0050. Avoid opening untrusted MRF files or visiting suspicious websites to prevent exploitation.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-18295. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart