{"id":"CVE-2019-9423","aliases":["GHSA-8849-5h85-98qw","PYSEC-2026-2796","PYSEC-2026-2811","PYSEC-2026-2835","PYSEC-2026-719"],"title":"Out-of-bounds Write in OpenCV","summary":"Out-of-bounds Write in OpenCV","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"opencv-python","product":"opencv-python","ecosystem":"pip","affected":["opencv-python <= 4.1.1.26","opencv-python-headless <= 4.1.1.26","opencv-contrib-python <= 4.1.1.26","opencv-contrib-python-headless <= 4.1.1.26"],"published":"2021-10-12","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:49:09.258983938Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-8849-5h85-98qw","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-9423"},{"url":"https://github.com/opencv/opencv-python"},{"url":"https://source.android.com/security/bulletin/android-10"},{"url":"http://www.openwall.com/lists/oss-security/2019/10/25/17"},{"url":"http://www.openwall.com/lists/oss-security/2019/10/27/1"},{"url":"http://www.openwall.com/lists/oss-security/2019/11/07/1"},{"url":"http://www.openwall.com/lists/oss-security/2020/12/05/1"}],"tags":["osv","pip"],"epss":0.00296,"epssPercentile":0.22392,"ingestedAt":"2026-07-08T18:25:47.327Z","slug":"CVE-2019-9423","body":"## Overview\n\nIn opencv calls that use libpng, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges required. User interaction is not required for exploitation. Product: AndroidVersions: Android-10Android ID: A-110986616\n\n## Affected packages\n\n- `opencv-python <= 4.1.1.26`\n- `opencv-python-headless <= 4.1.1.26`\n- `opencv-contrib-python <= 4.1.1.26`\n- `opencv-contrib-python-headless <= 4.1.1.26`\n\n## Remediation\n\nRefer to the advisory for the patched release.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}