CVE-2020-26664: Debian Linux

High severity, CVSS 7.8. EPSS: 1.5% chance of exploitation in the next 30 days.

A vulnerability in EbmlTypeDispatcher::send in VideoLAN VLC media player 3.0.11 allows attackers to trigger a heap-based buffer overflow via a crafted .mkv file.

Affected products

• Debian Debian Linux: version 9.0 only; version 10.0 only
• Videolan Vlc Media Player: before 3.0.12 (fixed in 3.0.12)

Published 2021-01-08. Last modified 2026-10-08.