High severity7.8NVD Advisory· Published Mar 16, 2026· Updated Jul 21, 2026
CVE-2026-2923
CVE-2026-2923
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
12- osv-coords9 versionspkg:rpm/almalinux/gstreamer1-plugins-bad-freepkg:rpm/almalinux/gstreamer1-plugins-bad-free-develpkg:rpm/almalinux/gstreamer1-plugins-bad-free-libspkg:rpm/almalinux/gstreamer1-plugins-basepkg:rpm/almalinux/gstreamer1-plugins-base-develpkg:rpm/almalinux/gstreamer1-plugins-base-toolspkg:rpm/almalinux/gstreamer1-plugins-goodpkg:rpm/almalinux/gstreamer1-plugins-good-gtkpkg:rpm/almalinux/gstreamer1-plugins-ugly-free
< 1.26.7-2.el10_2+ 8 more
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
Patches
Vulnerability mechanics
References
12- gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/3b8253f447bcc9831dbf643d2c69b205fedbe086nvdPatchVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-26-161/nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2026:19024nvd
- access.redhat.com/errata/RHSA-2026:19180nvd
- access.redhat.com/errata/RHSA-2026:6259nvd
- access.redhat.com/errata/RHSA-2026:6300nvd
- access.redhat.com/errata/RHSA-2026:6750nvd
- access.redhat.com/errata/RHSA-2026:8854nvd
- access.redhat.com/errata/RHSA-2026:8862nvd
- access.redhat.com/security/cve/CVE-2026-2923nvd
- bugzilla.redhat.com/show_bug.cginvd
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2923.jsonnvd
News mentions
1- ZDI-26-161: GStreamer DVB Subtitles Out-Of-Bounds Write Remote Code Execution VulnerabilityZero Day Initiative · Mar 6, 2026