ZDI-26-164: GStreamer ASF Demuxer Heap-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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-2920.
AI Analysis
Technical Summary
CVE-2026-2920 is a heap-based buffer overflow vulnerability in the ASF demuxer of GStreamer. The vulnerability occurs due to insufficient validation of the length of user-supplied data before copying it into a fixed-length heap buffer during ASF stream header processing. This flaw can be exploited remotely to execute arbitrary code within the context of the affected process. The vulnerability requires interaction with the GStreamer library, and attack vectors depend on the specific implementation. GStreamer has issued a patch to fix this vulnerability, as referenced in their official commit.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code with the privileges of the process running GStreamer. This can lead to full compromise of the affected system or application. The CVSS score of 7.8 indicates high severity with impacts on confidentiality, integrity, and availability.
Mitigation Recommendations
GStreamer has released an official update that addresses this vulnerability. Users and administrators should apply the provided patch or update their GStreamer installations to the fixed version as soon as possible. No additional mitigation steps are indicated by the vendor advisory.
ZDI-26-164: GStreamer ASF Demuxer Heap-based Buffer Overflow Remote Code Execution Vulnerability
Description
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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-2920.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-2920 is a heap-based buffer overflow vulnerability in the ASF demuxer of GStreamer. The vulnerability occurs due to insufficient validation of the length of user-supplied data before copying it into a fixed-length heap buffer during ASF stream header processing. This flaw can be exploited remotely to execute arbitrary code within the context of the affected process. The vulnerability requires interaction with the GStreamer library, and attack vectors depend on the specific implementation. GStreamer has issued a patch to fix this vulnerability, as referenced in their official commit.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code with the privileges of the process running GStreamer. This can lead to full compromise of the affected system or application. The CVSS score of 7.8 indicates high severity with impacts on confidentiality, integrity, and availability.
Mitigation Recommendations
GStreamer has released an official update that addresses this vulnerability. Users and administrators should apply the provided patch or update their GStreamer installations to the fixed version as soon as possible. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Article Source
- {"url":"http://www.zerodayinitiative.com/advisories/ZDI-26-164/","fetched":true,"fetchedAt":"2026-05-26T20:02:05.890Z","wordCount":205}
Threat ID: 6a15fc94e29bf47b5055e5a3
Added to database: 05/26/2026, 20:03:32 UTC
Last enriched: 05/26/2026, 20:27:06 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 147
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