CVE-2026-2922GStreamer RealMedia Demuxer Out-Of-Bounds Write Remote Code Execution Vulnerability

Official description

GStreamer RealMedia Demuxer Out-Of-Bounds Write 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 specific flaw exists within the processing of video packets. 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-28845.

Affected packages & fixed versions

Affected products (as reported)

References

• ZDI-26-165 x_research-advisory
• vendor-provided URL vendor-advisory
• https://access.redhat.com/security/cve/CVE-2026-2922 vdb-entry, x_refsource_REDHAT
• RHBZ#2447500 issue-tracking, x_refsource_REDHAT
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2922.json x_sadp-csaf-vex
• https://access.redhat.com/errata/RHSA-2026:8854 vendor-advisory, x_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2026:6259 vendor-advisory, x_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2026:19024 vendor-advisory, x_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2026:8862 vendor-advisory, x_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2026:6300 vendor-advisory, x_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2026:19180 vendor-advisory, x_refsource_REDHAT