{"id":"CVE-2019-19721","title":"An off-by-one error in the DecodeBlock function in codec/sdl_image.c in VideoLAN VLC media player before 3.0.9 allows remote attackers to cause a denial of service (memory corruption) via a crafted image file","summary":"An off-by-one error in the DecodeBlock function in codec/sdl_image.c in VideoLAN VLC media player before 3.0.9 allows remote attackers to cause a denial of service (memory corruption) via a crafted image file. NOTE: this may be related t…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-193","CWE-787"],"vendor":"videolan","product":"vlc_media_player","affected":["vlc_media_player < 3.0.9"],"patched":["vlc_media_player 3.0.9"],"published":"2020-05-15","updated":"2026-10-08","sourceUpdated":"2026-10-08T22:16:51.790","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2019-19721","references":[{"url":"http://hg.libsdl.org/SDL_image/","label":"cve@mitre.org"},{"url":"https://bugs.gentoo.org/721940","label":"cve@mitre.org"},{"url":"https://git.videolan.org/?p=vlc/vlc-3.0.git%3Ba=commit%3Bh=72afe7ebd8305bf4f5360293b8621cde52ec506b","label":"cve@mitre.org"},{"url":"https://www.videolan.org/security/","label":"cve@mitre.org"},{"url":"http://hg.libsdl.org/SDL_image/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.gentoo.org/721940","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.videolan.org/?p=vlc/vlc-3.0.git%3Ba=commit%3Bh=72afe7ebd8305bf4f5360293b8621cde52ec506b","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.videolan.org/security/","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.0199,"epssPercentile":0.80011,"ingestedAt":"2026-10-08T23:16:47.305Z","slug":"CVE-2019-19721","body":"## Overview\n\nAn off-by-one error in the DecodeBlock function in codec/sdl_image.c in VideoLAN VLC media player before 3.0.9 allows remote attackers to cause a denial of service (memory corruption) via a crafted image file. NOTE: this may be related to the SDL_Image product.\n\n## Affected\n\n- `vlc_media_player < 3.0.9`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `vlc_media_player 3.0.9`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.4,"exploitation":0,"ransomware":0},"changes":[]}