Quick answers
- Is CVE-2026-119777 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-119777 being exploited in the wild.
- How severe is CVE-2026-119777?
- High severity, with a CVSS score of 7.8, published 30 October 2026.
- Which products and versions are affected?
- Gstreamer Gst-Plugins-Bad versions before fix; RHEL 10.2.z, 10.3.z, 10.4; Fedora 43.
- Is there a fix for CVE-2026-119777?
- No fixed version is recorded yet. Disable H.266/VVC media ingestion in GStreamer-based applications and media pipelines where that feature is not required. Do not open or transcode H.266/VVC files or streams from untrusted sources until a patch is available. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-119777 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-119777?
- Check whether you run Gstreamer Gst-Plugins-Bad at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
Disable H.266/VVC media ingestion in GStreamer-based applications and media pipelines where that feature is not required. Do not open or transcode H.266/VVC files or streams from untrusted sources until a patch is available.
Technical details
An integer overflow in the H.266/VVC parser's profile, tier, and level field parsing leads to a stack-based buffer overflow. Attack requires a GStreamer-based application to process attacker-controlled H.266/VVC media with user interaction; exploitation can crash the application or execute code in its context. The vulnerability affects gstreamer1-plugins-bad-free in RHEL 10.2.z, 10.3.z, 10.4 and Fedora 43, but not RHEL 7–10.0.
Affected products
- GStreamer gst-plugins-bad versions before fix; RHEL 10.2.z, 10.3.z, 10.4; Fedora 43
Timeline
- 2026-10-30: disclosed