CVE-2011-3623

CVE-2011-3623 is a high-severity vulnerability in Videolan Vlc Media Player with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

• Severity: High (CVSS 2.0 base score 7.5)
• EPSS exploit prediction: 4% (90th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Videolan Vlc Media Player
• Published: 2014-12-26
• Last modified: 2026-06-16

Description

Multiple stack-based buffer overflows in VideoLAN VLC media player before 1.0.2 allow remote attackers to execute arbitrary code via (1) a crafted ASF file, related to the ASF_ObjectDumpDebug function in modules/demux/asf/libasf.c; (2) a crafted AVI file, related to the AVI_ChunkDumpDebug_level function in modules/demux/avi/libavi.c; or (3) a crafted MP4 file, related to the __MP4_BoxDumpStructure function in modules/demux/mp4/libmp4.c.

Frequently asked questions

What is CVE-2011-3623?

Multiple stack-based buffer overflows in VideoLAN VLC media player before 1.0.2 allow remote attackers to execute arbitrary code via (1) a crafted ASF file, related to the ASF_ObjectDumpDebug function in modules/demux/asf/libasf.c; (2) a crafted AVI file, related to the AVI_ChunkDumpDebug_level function in modules/demux/avi/libavi.c; or (3) a crafted MP4 file, related to the __MP4_BoxDumpStructure function in modules/demux/mp4/libmp4.c.

How severe is CVE-2011-3623?

CVE-2011-3623 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2011-3623 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-3623?

CVE-2011-3623 primarily affects Videolan Vlc Media Player. In total, 40 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-3623?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2011-3623 published?

CVE-2011-3623 was published on 2014-12-26 and last updated on 2026-06-16.

References

• http://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=861e374d03e6c60c7d3c98428c632fe3b9e371b2
• http://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=c5b02d011b8c634d041167f4d2936b55eca4d18d
• http://git.videolan.org/?p=vlc.git%3Ba=commit%3Bh=dfe7084e8cc64e9b7a87cd37065b59cba2064823
• http://openwall.com/lists/oss-security/2011/10/18/10
• http://www.videolan.org/security/sa0901.html
• https://bugs.gentoo.org/show_bug.cgi?id=285370

Affected products (40)

• cpe:2.3:a:videolan:vlc_media_player:*:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.5.3:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.6.0:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.6.2:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.7.0:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.0:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.1:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.2:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.4:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.4a:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.5:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.6:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.6a:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.6b:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.6c:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.6d:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.6e:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.6f:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.6g:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.6h:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.6i:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.8.1337:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.9.0:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.9.1:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.9.2:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.9.3:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.9.4:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.9.5:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.9.6:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.9.8a:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.9.9:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.9.9a:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:0.9.10:*:*:*:*:*:*:*
• cpe:2.3:a:videolan:vlc_media_player:1.0.0:*:*:*:*:*:*:*

More vulnerabilities in Videolan Vlc Media Player

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• CVE-2019-13962 — Critical (CVSS 9.8): lavc_CopyPicture in modules/codec/avcodec/video.c in VideoLAN VLC media player through 3.0.7 has a heap-based buffer…
• CVE-2019-12874 — Critical (CVSS 9.8): An issue was discovered in zlib_decompress_extra in modules/demux/mkv/util.cpp in VideoLAN VLC media player 3.x through…
• CVE-2017-10699 — Critical (CVSS 9.8): avcodec 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…
• CVE-2016-5108 — Critical (CVSS 9.8): Buffer overflow in the DecodeAdpcmImaQT function in modules/codec/adpcm.c in VideoLAN VLC media player before 2.2.4…

All CVEs affecting Videolan Vlc Media Player →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

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• CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
• CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
• CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →