ZDI-26-463: 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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-18295.
AI Analysis
Technical Summary
CVE-2026-18295 is a critical remote code execution vulnerability in GStreamer affecting the parsing of MRF files. The vulnerability arises from a lack of proper validation of user input, leading to a write past the end of an allocated buffer. Successful exploitation allows an attacker to execute arbitrary code within the context of the current process. User interaction is required for exploitation. GStreamer has issued an official update to fix this vulnerability.
Potential Impact
Remote attackers can execute arbitrary code on affected systems running vulnerable versions of GStreamer by tricking users into opening malicious MRF files or visiting malicious web pages. This can lead to full compromise of the affected process with high confidentiality, integrity, and availability impact.
Mitigation Recommendations
An official fix is available from GStreamer. Users and administrators should apply the update provided by GStreamer as described in their security advisory at https://gstreamer.freedesktop.org/security/sa-2026-0050.html to remediate this vulnerability.
ZDI-26-463: GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Description
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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-18295.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18295 is a critical remote code execution vulnerability in GStreamer affecting the parsing of MRF files. The vulnerability arises from a lack of proper validation of user input, leading to a write past the end of an allocated buffer. Successful exploitation allows an attacker to execute arbitrary code within the context of the current process. User interaction is required for exploitation. GStreamer has issued an official update to fix this vulnerability.
Potential Impact
Remote attackers can execute arbitrary code on affected systems running vulnerable versions of GStreamer by tricking users into opening malicious MRF files or visiting malicious web pages. This can lead to full compromise of the affected process with high confidentiality, integrity, and availability impact.
Mitigation Recommendations
An official fix is available from GStreamer. Users and administrators should apply the update provided by GStreamer as described in their security advisory at https://gstreamer.freedesktop.org/security/sa-2026-0050.html to remediate this vulnerability.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-463/","fetched":true,"fetchedAt":"2026-07-30T15:56:37.836Z","wordCount":208}
Threat ID: 6a6b74c69c2644c7f84cc4aa
Added to database: 07/30/2026, 15:59:02 UTC
Last enriched: 07/30/2026, 16:10:22 UTC
Last updated: 07/31/2026, 12:48:24 UTC
Views: 7
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