---
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'
---

## Overview

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 attacker could cause an application to crash and may be able to execute code in the context of the affected application.

## Affected

- `gstreamer1-plugins-bad-free (all versions)`
- `gstreamer1-plugins-bad-free`
- `gstreamer1-plugins-bad-free`
- `gstreamer1-plugins-bad-free`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

### Workarounds

There 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.