---
title: "CVE-2026-119777: GStreamer gst-plugins-bad - Buffer Overflow"
description: "GStreamer gst-plugins-bad H.266/VVC parser contains a stack-based buffer overflow caused by integer overflow when parsing profile, tier, and level fields, letting attackers cause crashes or execute code, exploit requires crafted malformed media file."
url: https://panop.io/threat-heartbeat/CVE-2026-119777/
---

# CVE-2026-119777 GStreamer gst-plugins-bad - Buffer Overflow

GStreamer gst-plugins-bad H.266/VVC parser contains a stack-based buffer overflow caused by integer overflow when parsing profile, tier, and level fields, letting attackers cause crashes or execute code, exploit requires crafted malformed media file.

CVSS base score 7.8 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.19% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-119777)

## Details

Type

Buffer Overflow

Impact

Remote Code Execution, Denial Of Service

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Published

30 October 2026

Updated

1 November 2026

Weakness

[CWE-787](https://cwe.mitre.org/data/definitions/787.html)

## Vendor fix

Update to the latest version of GStreamer gst-plugins-bad containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-119777](https://nvd.nist.gov/vuln/detail/CVE-2026-119777)
- [https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge\_requests/11241](https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11241)
- [https://access.redhat.com/security/cve/CVE-2026-119777](https://access.redhat.com/security/cve/CVE-2026-119777)
- [https://bugzilla.redhat.com/show\_bug.cgi?id=2564164](https://bugzilla.redhat.com/show_bug.cgi?id=2564164)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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