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Vulnerability record · CVE-2021-25801 · published 26 July 2021

CVE-2021-25801: Videolan vlc media player out-of-bounds read vulnerability

Videolan · Vlc Media Player

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

7.1 CVSS 3.1 High EPSS 1.5% · top 26.1% CWE-125 · Out-of-bounds read
7.1CVSS 3.1 base score, v2 5.8
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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

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

Affected products

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

References

LinkTags
https://code.videolan.org/videolan/vlc-3.0/-/commit/f5f8cc3ab8825f178de3f6714bfbff8b3f293fd2 Vendor Advisory
https://code.videolan.org/videolan/vlc-3.0/-/commit/f5f8cc3ab8825f178de3f6714bfbff8b3f293fd2 Vendor Advisory

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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 3.7%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-2021-25801), CISA KEV, FIRST EPSS (scores of 2026-10-09). This page is refreshed as NVD updates the record.