{"id":"CVE-2020-5741","kind":"vulnerability","aliases":["CVE-2020-5741"],"related":[],"title":"Deserialization of Untrusted Data in Plex Media Server on Windows allows a remote, authenticated attacker to execute…","description":"Plex Media Server contains a remote code execution vulnerability that allows an attacker with access to the server administrator's Plex account to upload a malicious file via the Camera Upload feature and have the media server execute it.\n\nCISA required action: Apply updates per vendor instructions.","summary":"Plex Media Server has a remote code execution flaw in its Camera Upload feature. An attacker who holds the server administrator's Plex account can upload a malicious file and get the server to execute it.","severity":"high","cvss":7.2,"epss":null,"exploited":true,"exploited_at":"2023-03-10T00:00:00+00:00","products":[{"name":"plex media server","fixed":["1.19.3"],"affected":"< 1.19.3","ecosystem":"vendor"},{"name":"Plex Media Server","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","plex-media-server","runtime","self-hosted"],"not_affected_if":["camera-upload-disabled","no-admin-account-exposure"],"how_to_check":null,"fix":"Apply the vendor update for Plex Media Server; the sources do not name the fixed version. CISA lists this as a known exploited vulnerability with required action: apply updates per vendor instructions.","status":"open","published_at":"2020-05-08T13:15:11+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:08:34+00:00","updated_at":"2026-10-24T00:09:51+00:00","category":"runtime","confidence":0.6,"triage":{"at":"2026-10-23T21:08:34Z","model":"claude-haiku-5-5","output":{"fix":"Apply the vendor update for Plex Media Server; the sources do not name the fixed version. CISA lists this as a known exploited vulnerability with required action: apply updates per vendor instructions.","reach":"internet","impact":"high","summary":"Plex Media Server has a remote code execution flaw in its Camera Upload feature. An attacker who holds the server administrator's Plex account can upload a malicious file and get the server to execute it.","category":"runtime","who_cares":["plex-media-server","self-hosted"],"confidence":0.6,"needs_auth":"yes","worst_case":"Attacker runs code on the Plex server via uploaded file","analyst_note":"Find the fixed Plex Media Server version and whether Camera Upload must be enabled for exploitation, using the Plex security advisory for CVE-2020-5741.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["camera-upload-disabled","no-admin-account-exposure"],"user_interaction":"no","needs_special_setup":"yes","severity_if_unknown":"high"},"cost_usd":0.000466,"input_tokens":2802,"output_tokens":371,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2020':19A,22A '-5741':20A,23A 'access':88C 'account':62B,95C 'action':115C 'administr':59B,92C 'allow':11A,84C 'appli':116C 'attack':15A,54B,86C 'authent':14A 'camera':50B,103C 'cisa':113C 'code':45B,80C 'contain':77C 'cve':18A,21A 'data':4A 'deseri':1A 'execut':17A,46B,73B,81C,111C 'exploit':30B 'featur':52B,105C 'file':67B,100C 'flaw':47B 'get':69B 'hold':56B 'host':38B 'instruct':120C 'malici':66B,99C 'media':7A,25A,28A,33B,40B,75C,109C 'per':118C 'plex':6A,24A,27A,32B,39B,61B,74C,94C 'plex-media-serv':31B 'remot':13A,44B,79C 'requir':114C 'runtim':35B 'self':37B 'self-host':36B 'server':8A,26A,29A,34B,41B,58B,71B,76C,91C,110C 'untrust':3A 'updat':117C 'upload':51B,64B,97C,104C 'vendor':119C 'via':101C 'vulner':82C 'window':10A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2020-05-08T13:15:11+00:00","kev":{"dateAdded":"2023-03-10","dueDate":"2023-03-31","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2020-5741","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-5741","severity":null,"published_at":"2023-03-10T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T12:39:23+00:00","note":null},{"source":"nvd","external_id":"CVE-2020-5741","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-5741","severity":null,"published_at":"2020-05-08T13:15:11+00:00","modified_at":"2026-06-17T03:22:09+00:00","first_seen_at":"2026-10-23T22:29:04+00:00","fetched_at":"2026-10-23T22:29:04+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}