{"id":"CVE-2019-1405","kind":"vulnerability","aliases":["CVE-2019-1405"],"related":[],"title":"Microsoft Windows: Microsoft Windows Universal Plug and Play (UPnP) Service Privilege Escalation Vulnerability","description":"An elevation of privilege vulnerability exists when the Windows Universal Plug and Play (UPnP) service improperly allows COM object creation, aka 'Windows UPnP Service Elevation of Privilege Vulnerability'.","summary":"The Windows Universal Plug and Play (UPnP) service improperly allows COM object creation, which lets a local user raise their privileges. An attacker who already has a foothold on the machine gets SYSTEM-level control.","severity":"high","cvss":7.8,"epss":0.30168,"exploited":true,"exploited_at":"2022-03-15T00:00:00+00:00","products":[{"name":"Microsoft Windows","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","ransomware","self-hosted","windows"],"not_affected_if":["patched-windows"],"how_to_check":null,"fix":"Apply the Microsoft Windows updates for CVE-2019-1405 per vendor instructions (CISA KEV required action).","status":"open","published_at":"2019-11-12T19:15:13+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:22:14+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T21:22:14Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft Windows updates for CVE-2019-1405 per vendor instructions (CISA KEV required action).\nunknown","reach":"local","impact":"high","summary":"The Windows Universal Plug and Play (UPnP) service improperly allows COM object creation, which lets a local user raise their privileges. An attacker who already has a foothold on the machine gets SYSTEM-level control.","category":"infrastructure","who_cares":["windows","self-hosted"],"confidence":0.6,"needs_auth":"yes","worst_case":"local user gains SYSTEM privileges on the Windows host","analyst_note":"Confirm affected Windows builds and the patch KB list from Microsoft's advisory for CVE-2019-1405; sources give no version data.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["patched-windows"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000454,"input_tokens":2835,"output_tokens":340,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-1405':16A,19A '-2019':15A,18A 'aka':85C 'allow':38B,81C 'alreadi':53B 'attack':51B 'com':39B,82C 'control':64B 'creation':41B,84C 'cve':14A,17A 'elev':66C,89C 'escal':12A 'exist':70C 'exploit':22B 'foothold':56B 'get':60B 'host':27B 'improp':37B,80C 'infrastructur':23B 'let':43B 'level':63B 'local':45B 'machin':59B 'microsoft':1A,3A,20A 'object':40B,83C 'play':8A,34B,77C 'plug':6A,32B,75C 'privileg':11A,49B,68C,91C 'rais':47B 'ransomwar':24B 'self':26B 'self-host':25B 'servic':10A,36B,79C,88C 'system':62B 'system-level':61B 'univers':5A,31B,74C 'upnp':9A,35B,78C,87C 'user':46B 'vulner':13A,69C,92C 'window':2A,4A,28B,30B,73C,86C 'windows':21A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2019-11-12T19:15:13+00:00","kev":{"dateAdded":"2022-03-15","dueDate":"2022-04-05","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Known"},"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2019-1405","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-1405","severity":null,"published_at":"2022-03-15T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T11:39:17+00:00","note":null},{"source":"epss","external_id":"CVE-2019-1405","url":"https://api.first.org/data/v1/epss?cve=CVE-2019-1405","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:44+00:00","fetched_at":"2026-10-23T19:13:44+00:00","note":null},{"source":"nvd","external_id":"CVE-2019-1405","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-1405","severity":null,"published_at":"2019-11-12T19:15:13+00:00","modified_at":"2026-08-12T05:17:24+00:00","first_seen_at":"2026-10-23T21:57:35+00:00","fetched_at":"2026-10-23T21:57:35+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"}