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Vulnerability record · CVE-2014-5271 · published 3 November 2014

CVE-2014-5271: Ffmpeg memory buffer overflow vulnerability

Ffmpeg · Ffmpeg

Heap-based buffer overflow in the encode_slice function in libavcodec/proresenc_kostya.c in FFMpeg before 1.1.14, 1.2.x before 1.2.8, 2.x before 2.2.7, and 2.3.x before 2.3.3 and Libav before 10.5 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via unspecified vectors.

7.5 CVSS 2.0 High EPSS 4.7% · top 8.4% CWE-119 · Memory buffer overflow
7.5CVSS 2.0 base score
4.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

Description

Heap-based buffer overflow in the encode_slice function in libavcodec/proresenc_kostya.c in FFMpeg before 1.1.14, 1.2.x before 1.2.8, 2.x before 2.2.7, and 2.3.x before 2.3.3 and Libav before 10.5 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via unspecified vectors.

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

Affected products

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

References

LinkTags
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=52b81ff4635c077b2bc8b8d3637d933b6629d803
http://www.osvdb.org/111725
http://www.securityfocus.com/bid/69250
https://security.gentoo.org/glsa/201603-06
https://www.ffmpeg.org/security.html
http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=52b81ff4635c077b2bc8b8d3637d933b6629d803
http://www.osvdb.org/111725
http://www.securityfocus.com/bid/69250
https://security.gentoo.org/glsa/201603-06
https://www.ffmpeg.org/security.html

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Related vulnerabilities

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

10.0CVE-2014-3984Libav vulnerabilityMultiple unspecified vulnerabilities in Libav before 0.8.12 allow remote attackers to have unknown impact and vectors.EPSS 4.0%10.0CVE-2013-0864Ffmpeg vulnerabilityThe gif_copy_img_rect function in libavcodec/gifdec.c in FFmpeg before 1.1.2 performs an incorrect calculation for an "end pointer," which allows rem…EPSS 2.8%10.0CVE-2013-0872Ffmpeg memory buffer overflow vulnerabilityThe swr_init function in libswresample/swresample.c in FFmpeg before 1.1.3 allows remote attackers to have an unspecified impact via an invalid or un…EPSS 2.8%10.0CVE-2013-4265Ffmpeg vulnerabilityThe av_reallocp_array function in libavutil/mem.c in FFmpeg before 2.0.1 has an unspecified impact and remote vectors related to a "wrong return code…EPSS 2.5%10.0CVE-2013-0873Ffmpeg improper input validation vulnerabilityThe read_header function in libavcodec/shorten.c in FFmpeg before 1.1.3 allows remote attackers to have an unspecified impact via an invalid channel …EPSS 2.8%10.0CVE-2011-3937Ffmpeg vulnerabilityThe H.263 codec (libavcodec/h263dec.c) in FFmpeg 0.7.x before 0.7.12, 0.8.x before 0.8.11, and unspecified versions before 0.10, and in Libav 0.5.x b…EPSS 2.3%10.0CVE-2012-5144Canonical ubuntu linux memory buffer overflow vulnerabilityGoogle Chrome before 23.0.1271.97, and Libav 0.7.x before 0.7.7 and 0.8.x before 0.8.5, do not properly perform AAC decoding, which allows remote att…EPSS 3.4%10.0CVE-2012-2797Ffmpeg vulnerabilityUnspecified vulnerability in the decode_frame_mp3on4 function in libavcodec/mpegaudiodec.c in FFmpeg before 0.11 and Libav 0.8.x before 0.8.5 has unk…EPSS 2.6%

Source: NIST National Vulnerability Database (record CVE-2014-5271), CISA KEV, FIRST EPSS (scores of 2026-10-09). This page is refreshed as NVD updates the record.