CVE-2020-26664

Name: CVE-2020-26664
Creator: NVD / NIST
Published: 2021-01-08T18:15:13.403+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.54%

Last modified Jun 17, 2026

CVE-2020-26664 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 1.54% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

1.54%

71.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Videolan	Vlc Media Player	< 3.0.12
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0

References

http://videolan.comProduct, Vendor Advisory
http://vlc.comThird Party Advisory
https://gist.githubusercontent.com/henices/db11664dd45b9f322f8514d182aef5ea/raw/d56940c8bf211992bf4f3309a85bb2b69383e511/CVE-2020-26664.txtExploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/06/msg00012.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202101-37Third Party Advisory
https://www.debian.org/security/2021/dsa-4834Third Party Advisory
http://videolan.comProduct, Vendor Advisory
http://vlc.comThird Party Advisory
https://gist.githubusercontent.com/henices/db11664dd45b9f322f8514d182aef5ea/raw/d56940c8bf211992bf4f3309a85bb2b69383e511/CVE-2020-26664.txtExploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/06/msg00012.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202101-37Third Party Advisory
https://www.debian.org/security/2021/dsa-4834Third Party Advisory

Timeline

Published: Jan 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-26664?

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.

How severe is CVE-2020-26664?

CVE-2020-26664 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.

How do I fix CVE-2020-26664?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-26664?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST