CVE-2026-2922
GStreamer RealMedia Demuxer Out-Of-Bounds Write Remote Code Execution Vulnerability.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.43% probability · 36th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- gstreamer/gstreamer
- Source
- zdi-disclosures@trendmicro.com
References
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/88df8d2cd063b95a076e8041b47f778a4402f363Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-26-165/Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:19024
- https://access.redhat.com/errata/RHSA-2026:19180
- https://access.redhat.com/errata/RHSA-2026:6259
- https://access.redhat.com/errata/RHSA-2026:6300
- https://access.redhat.com/errata/RHSA-2026:8854
- https://access.redhat.com/errata/RHSA-2026:8862
- https://access.redhat.com/security/cve/CVE-2026-2922
- https://bugzilla.redhat.com/show_bug.cgi?id=2447500
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2922.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.