Detections
Analytics
CVE-2026-2923
high
Description
GStreamer DVB Subtitles 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 handling of coordinates. 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-28838.
References
https://www.zerodayinitiative.com/advisories/ZDI-26-161/
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/3b8253f447bcc9831dbf643d2c69b205fedbe086
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2923.json
https://bugzilla.redhat.com/show_bug.cgi?id=2447503
https://access.redhat.com/security/cve/CVE-2026-2923
https://access.redhat.com/errata/RHSA-2026:8862
https://access.redhat.com/errata/RHSA-2026:8854
https://access.redhat.com/errata/RHSA-2026:6750
https://access.redhat.com/errata/RHSA-2026:6300
https://access.redhat.com/errata/RHSA-2026:6259