Buffer Overflow Affecting vlc package, versions <3.0.8-0ubuntu18.04.1+esm1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.74% (50th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UBUNTU1804-VLC-1534032
  • published22 Mar 2026
  • disclosed26 Jul 2021

Introduced: 26 Jul 2021

CVE-2021-25803  (opens in a new tab)
CWE-120  (opens in a new tab)

How to fix?

Upgrade Ubuntu:18.04 vlc to version 3.0.8-0ubuntu18.04.1+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream vlc package and not the vlc package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

A buffer overflow vulnerability in the vlc_input_attachment_New component of VideoLAN VLC Media Player 3.0.11 allows attackers to cause an out-of-bounds read via a crafted .avi file.

CVSS Base Scores

version 3.1