CVE-2026-2923
GStreamer DVB Subtitles Out-Of-Bounds Write Remote Code Execution Vulnerability
- State
- Published
- Severity
- 7.8 High
- Published
- Mar 13, 2026
- Updated
- Jul 21, 2026
- Reserved
- Feb 20, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 7.8 High | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | zdi |
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | redhat-SADP |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
GStreamerGStreamer |
|
References
- ZDI-26-161
- vendor-provided URLvendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-2923vdb-entry
- RHBZ#2447503issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2923.json
- https://access.redhat.com/errata/RHSA-2026:8854vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:6259vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:19024vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:6750vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:8862vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:6300vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:19180vendor-advisory
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