CVE-2020-26664

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Summary

CVECVE-2020-26664
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-01-08 18:15:13 UTC
Updated2026-07-09 01:16:39 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.014600000 probability, percentile 0.705120000 (date 2026-07-12)

Problem Types: CWE-787 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
2.0[email protected]Primary6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:M/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Application Videolan Vlc Media Player All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
VLC: Buffer overflow (GLSA 202101-37) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org Third Party Advisory
[SECURITY] [DLA 3050-1] vlc security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
gist.githubusercontent.com/henices/db11664dd45b9f322f8514d182aef5ea/raw/d56940c8bf211992... af854a3a-2127-422b-91ae-364da2661108 gist.githubusercontent.com Exploit, Third Party Advisory
Debian -- Security Information -- DSA-4834-1 vlc af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
videolan.com MITRE videolan.com
DSI Architects, Inc. MITRE vlc.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 179369 Debian Security Update for vlc (DLA 3050-1)
  • 501268 Alpine Linux Security Update for vlc
  • 750223 OpenSUSE Security Update for vlc (openSUSE-SU-2021:0691-1)
  • 750419 OpenSUSE Security Update for vlc (openSUSE-SU-2021:0091-1)
  • 750425 OpenSUSE Security Update for vlc (openSUSE-SU-2021:0076-1)

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