{"id":"CVE-2026-96656","title":"Plex Media Server before 1.43.3.10861 allows an admin user to write arbitrary files that may be executed on load","summary":"Plex Media Server before 1.43.3.10861 allows an admin user to write arbitrary files that may be executed on load. The preference TranscoderH264Options is appended verbatim to x264's option string on every transcode. At startup, all .so f…","severity":"high","cvss":7.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-73"],"vendor":"Plex","product":"Media Server","affected":["media_server < 1.43.3.10861"],"published":"2026-09-23","updated":"2026-09-23","sourceUpdated":"2026-09-23T17:58:26.570","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-96656","references":[{"url":"https://forums.plex.tv/t/plex-media-server/30447/711","label":"9119a7d8-5eab-497f-8521-727c672e3725"},{"url":"https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-266-01.json","label":"9119a7d8-5eab-497f-8521-727c672e3725"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-96656","label":"9119a7d8-5eab-497f-8521-727c672e3725"},{"url":"https://zmain.info/blog/plex2shell","label":"9119a7d8-5eab-497f-8521-727c672e3725"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-23T16:35:05.105006Z"},"ingestedAt":"2026-09-23T16:27:22.663Z","epss":0.00339,"epssPercentile":0.24551,"slug":"CVE-2026-96656","body":"## Overview\n\nPlex Media Server before 1.43.3.10861 allows an admin user to write arbitrary files that may be executed on load. The preference TranscoderH264Options is appended verbatim to x264's option string on every transcode. At startup, all .so files are run without signature, execute bit, or symbol checks.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":39.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}