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Vulnerability record · CVE-2011-0531 · published 7 February 2011

CVE-2011-0531: Videolan vlc media player improper input validation vulnerability

Videolan · Vlc Media Player

demux/mkv/mkv.hpp in the MKV demuxer plugin in VideoLAN VLC media player 1.1.6.1 and earlier allows remote attackers to cause a denial of service (crash) and execute arbitrary commands via a crafted MKV (WebM or Matroska) file that triggers memory corruption, related to "class mismatching" and the MKV_IS_ID macro.

9.3 CVSS 2.0 High EPSS 42% · top 1.4% CWE-20 · Improper input validation
9.3CVSS 2.0 base score
42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
26References
16 Jun 2026Last modified by NVD

Description

demux/mkv/mkv.hpp in the MKV demuxer plugin in VideoLAN VLC media player 1.1.6.1 and earlier allows remote attackers to cause a denial of service (crash) and execute arbitrary commands via a crafted MKV (WebM or Matroska) file that triggers memory corruption, related to "class mismatching" and the MKV_IS_ID macro.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=59491dcedffbf97612d2c572943b56ee4289dd07
http://osvdb.org/70698
http://secunia.com/advisories/43131 Vendor Advisory
http://secunia.com/advisories/43242
http://www.debian.org/security/2011/dsa-2159
http://www.openwall.com/lists/oss-security/2011/01/31/4 Patch
http://www.openwall.com/lists/oss-security/2011/01/31/8 Patch
http://www.securityfocus.com/bid/46060
http://www.securitytracker.com/id?1025018
http://www.videolan.org/security/sa1102.html PatchVendor Advisory
http://www.vupen.com/english/advisories/2011/0363
https://exchange.xforce.ibmcloud.com/vulnerabilities/65045
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12415
http://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=59491dcedffbf97612d2c572943b56ee4289dd07
http://osvdb.org/70698
http://secunia.com/advisories/43131 Vendor Advisory
http://secunia.com/advisories/43242
http://www.debian.org/security/2011/dsa-2159
http://www.openwall.com/lists/oss-security/2011/01/31/4 Patch
http://www.openwall.com/lists/oss-security/2011/01/31/8 Patch
http://www.securityfocus.com/bid/46060
http://www.securitytracker.com/id?1025018
http://www.videolan.org/security/sa1102.html PatchVendor Advisory
http://www.vupen.com/english/advisories/2011/0363
https://exchange.xforce.ibmcloud.com/vulnerabilities/65045
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12415

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2008-0296Videolan vlc media player memory buffer overflow vulnerabilityHeap-based buffer overflow in the libaccess_realrtsp plugin in VideoLAN VLC Media Player 0.8.6d and earlier on Windows might allow remote RTSP server…EPSS 15%9.8CVE-2023-47359Videolan vlc media player out-of-bounds write vulnerabilityVideolan VLC prior to version 3.0.20 contains an incorrect offset read that leads to a Heap-Based Buffer Overflow in function GetPacket() and results…EPSS 1.1%9.8CVE-2019-13962Videolan vlc media player out-of-bounds read vulnerabilitylavc_CopyPicture in modules/codec/avcodec/video.c in VideoLAN VLC media player through 3.0.7 has a heap-based buffer over-read because it does not pr…EPSS 3.6%9.8CVE-2019-12874Videolan vlc media player double free vulnerabilityAn issue was discovered in zlib_decompress_extra in modules/demux/mkv/util.cpp in VideoLAN VLC media player 3.x through 3.0.7. The Matroska demuxer, …EPSS 2.4%9.8CVE-2017-10699Videolan vlc media player out-of-bounds write vulnerabilityavcodec 2.2.x, as used in VideoLAN VLC media player 2.2.7-x before 2017-06-29, allows out-of-bounds heap memory write due to calling memcpy() with a …EPSS 4.5%9.8CVE-2016-5108Debian linux memory buffer overflow vulnerabilityBuffer overflow in the DecodeAdpcmImaQT function in modules/codec/adpcm.c in VideoLAN VLC media player before 2.2.4 allows remote attackers to cause …EPSS 25%9.3CVE-2013-1868Videolan vlc media player memory buffer overflow vulnerabilityMultiple buffer overflows in VideoLAN VLC media player 2.0.4 and earlier allow remote attackers to cause a denial of service (crash) and execute arbi…EPSS 11%9.3CVE-2012-0023Videolan vlc media player vulnerabilityDouble free vulnerability in the get_chunk_header function in modules/demux/ty.c in VideoLAN VLC media player 0.9.0 through 1.1.12 allows remote atta…EPSS 4.9%

Source: NIST National Vulnerability Database (record CVE-2011-0531), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.