CVE-2014-9626

CVE-2014-9626 is a high-severity vulnerability in Videolan Vlc Media Player with a CVSS 3.x base score of 7.8. 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-191.

Key facts

• Severity: High (CVSS 3.x base score 7.8)
• CVSS v2: 6.8
• EPSS exploit prediction: 1% (71st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-191
• Affected product: Videolan Vlc Media Player
• Published: 2020-01-24
• Last modified: 2026-06-17

Description

Integer underflow in the MP4_ReadBox_String function in modules/demux/mp4/libmp4.c in VideoLAN VLC media player before 2.1.6 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a box size less than 7.

Frequently asked questions

What is CVE-2014-9626?

Integer underflow in the MP4_ReadBox_String function in modules/demux/mp4/libmp4.c in VideoLAN VLC media player before 2.1.6 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a box size less than 7.

How severe is CVE-2014-9626?

CVE-2014-9626 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2014-9626 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-9626?

CVE-2014-9626 affects Videolan Vlc Media Player. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-9626?

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-2014-9626 published?

CVE-2014-9626 was published on 2020-01-24 and last updated on 2026-06-17.

References

• http://openwall.com/lists/oss-security/2015/01/20/5
• https://github.com/videolan/vlc/commit/2e7c7091a61aa5d07e7997b393d821e91f593c39
• https://www.videolan.org/security/sa1501.html

Affected products (1)

• cpe:2.3:a:videolan:vlc_media_player:*:*:*:*:*:*:*:*

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-191 (Integer Underflow) vulnerabilities

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• CVE-2026-37534 — Critical (CVSS 9.8): Integer underflow vulnerability in Open-SAE-J1939 thru commit b6caf884df46435e539b1ecbf92b6c29b345bdfe (2025-11-30) in…
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• CVE-2025-29909 — Critical (CVSS 9.8): CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures…
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Browse all CWE-191 (Integer Underflow) vulnerabilities →