{"id":"CVE-2022-23227","kind":"vulnerability","aliases":["CVE-2022-23227"],"related":[],"title":"nuuo nvrmini2 firmware: NUUO NVRmini2 through 3.11 allows an unauthenticated attacker to upload an encrypted TAR archive, which can be…","description":"NUUO NVRmini2 through 3.11 allows an unauthenticated attacker to upload an encrypted TAR archive, which can be abused to add arbitrary users because of the lack of handle_import_user.php authentication. When combined with another flaw (CVE-2011-5325), it is possible to overwrite arbitrary files under the web root and achieve code execution as root.","summary":"NUUO NVRmini2 network video recorders have a missing authentication check that lets an unauthenticated attacker upload an encrypted TAR archive. That archive can be abused to add arbitrary user accounts on the device.","severity":"critical","cvss":10.0,"epss":null,"exploited":true,"exploited_at":"2024-12-18T00:00:00+00:00","products":[{"name":"NUUO NVRmini2 Devices","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"nuuo nvrmini2 firmware","fixed":[],"affected":"<= 3.11.0","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","nuuo","nvrmini2","self-hosted","video-surveillance"],"not_affected_if":["no-nuuo-nvrmini2-devices"],"how_to_check":"Identify any NUUO NVRmini2 devices on the network and confirm the model.","fix":"Discontinue use of the NVRmini2 device, since CISA reports the product is end-of-life and end-of-service and no fix is listed in the sources.\nIsolate any remaining device from the internet and untrusted network segments.","status":"open","published_at":"2022-01-14T18:15:10+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:52:49+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"infrastructure","confidence":0.7,"triage":{"at":"2026-10-23T20:52:49Z","model":"claude-haiku-5-5","output":{"fix":"Discontinue use of the NVRmini2 device, since CISA reports the product is end-of-life and end-of-service and no fix is listed in the sources.\nIsolate any remaining device from the internet and untrusted network segments.","reach":"network","impact":"high","summary":"NUUO NVRmini2 network video recorders have a missing authentication check that lets an unauthenticated attacker upload an encrypted TAR archive. That archive can be abused to add arbitrary user accounts on the device.","category":"infrastructure","who_cares":["nuuo","nvrmini2","video-surveillance","self-hosted"],"confidence":0.7,"needs_auth":"no","worst_case":"Attacker adds arbitrary user accounts, gaining administrative access to the recorder.","analyst_note":"Confirm affected firmware versions and whether a patch exists; the sources list no fixed version, and check the CISA KEV entry for the exact required action.","how_to_check":"Identify any NUUO NVRmini2 devices on the network and confirm the model.\nunknown\nunknown","needs_analyst":true,"not_affected_if":["no-nuuo-nvrmini2-devices"],"user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000485,"input_tokens":2662,"output_tokens":437,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2011':108C '-2022':19A,22A '-23227':20A,23A '-5325':109C '3.11':7A,76C 'abus':64B,90C 'account':69B 'achiev':122C 'add':66B,92C 'allow':8A,77C 'anoth':105C 'arbitrari':67B,93C,115C 'archiv':17A,59B,61B,86C 'attack':11A,54B,80C 'authent':48B,101C 'check':49B 'code':123C 'combin':103C 'cve':18A,21A,107C 'devic':72B 'devices':26A 'encrypt':15A,57B,84C 'execut':124C 'exploit':30B 'file':116C 'firmwar':3A 'firmware':29A 'flaw':106C 'handle_import_user.php':100C 'host':36B 'infrastructur':31B 'lack':98C 'let':51B 'miss':47B 'network':42B 'nuuo':1A,4A,24A,27A,32B,40B,73C 'nvrmini2':2A,5A,25A,28A,33B,41B,74C 'overwrit':114C 'possibl':112C 'record':44B 'root':120C,126C 'self':35B 'self-host':34B 'surveil':39B 'tar':16A,58B,85C 'unauthent':10A,53B,79C 'upload':13A,55B,82C 'user':68B,94C 'video':38B,43B 'video-surveil':37B 'web':119C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2022-01-14T18:15:10+00:00","kev":{"dateAdded":"2024-12-18","dueDate":"2025-01-08","requiredAction":"The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2022-23227","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-23227","severity":null,"published_at":"2024-12-18T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T12:39:22+00:00","note":null},{"source":"nvd","external_id":"CVE-2022-23227","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-23227","severity":null,"published_at":"2022-01-14T18:15:10+00:00","modified_at":"2026-06-17T04:29:42+00:00","first_seen_at":"2026-10-23T22:29:05+00:00","fetched_at":"2026-10-23T22:29:05+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"}