{"id":"CVE-2026-119777","title":"Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: stack buffer overflow in h.266/vvc parser","summary":"A flaw was found in GStreamer's gst-plugins-bad H.266/VVC parser. When processing a malformed H.266 media file or stream, an integer overflow while parsing profile, tier, and level fields can lead to a stack-based buffer overflow. An att…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-787"],"vendor":"Red Hat","product":"gstreamer1-plugins-bad-free","affected":["gstreamer1-plugins-bad-free (all versions)","gstreamer1-plugins-bad-free","gstreamer1-plugins-bad-free","gstreamer1-plugins-bad-free"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-30T19:16:55.995158Z"},"published":"2026-10-30","updated":"2026-11-04","sourceUpdated":"2026-11-04T22:06:21.999Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119777","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-119777"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2564164","label":"RHBZ#2564164"},{"url":"https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11241"}],"tags":["cve.org"],"epss":0.00543,"epssPercentile":0.45752,"ingestedAt":"2026-11-05T21:36:00.631Z","slug":"CVE-2026-119777","body":"## Overview\n\nA flaw was found in GStreamer's gst-plugins-bad H.266/VVC parser. When processing a malformed H.266 media file or stream, an integer overflow while parsing profile, tier, and level fields can lead to a stack-based buffer overflow. An attacker could cause an application to crash and may be able to execute code in the context of the affected application.\n\n## Affected\n\n- `gstreamer1-plugins-bad-free (all versions)`\n- `gstreamer1-plugins-bad-free`\n- `gstreamer1-plugins-bad-free`\n- `gstreamer1-plugins-bad-free`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n### Workarounds\n\nThere is no complete mitigation for this vulnerability. As a risk-reduction measure, disable H.266/VVC media ingestion in GStreamer-based applications and media pipelines where that feature is not required. Until a fixed package is available, do not open or transcode H.266/VVC files or streams from untrusted sources.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}