---
title: "CVE-2026-86476: gst-plugins-base - Buffer Overflow"
description: "gst-plugins-base contains a heap buffer overflow caused by improper validation of GstVideoMeta plane strides and offsets during video buffer processing, letting local attackers cause denial of service or code execution via crafted IPC buffers."
url: https://panop.io/threat-heartbeat/CVE-2026-86476/
---

# CVE-2026-86476 gst-plugins-base - Buffer Overflow

gst-plugins-base contains a heap buffer overflow caused by improper validation of GstVideoMeta plane strides and offsets during video buffer processing, letting local attackers cause denial of service or code execution via crafted IPC buffers.

CVSS base score 8.4 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.21% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-86476)

## Details

Type

Buffer Overflow

Impact

Denial Of Service, Remote Code Execution

CVSS vector

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

Published

14 October 2026

Updated

15 October 2026

Weakness

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

## Vendor fix

Update gst-plugins-base to the latest version 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-2026-86476](https://nvd.nist.gov/vuln/detail/CVE-2026-86476)
- [https://access.redhat.com/security/cve/CVE-2026-86476](https://access.redhat.com/security/cve/CVE-2026-86476)
- [https://bugzilla.redhat.com/show\_bug.cgi?id=2529510](https://bugzilla.redhat.com/show_bug.cgi?id=2529510)
- [https://redhat.atlassian.net/browse/PSIRTSUPT-23320](https://redhat.atlassian.net/browse/PSIRTSUPT-23320)

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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

Panop answers these inside your environment, for this CVE and every other finding.

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