{"id":"CVE-2019-1130","kind":"vulnerability","aliases":["CVE-2019-1130"],"related":[],"title":"Microsoft Windows: Microsoft Windows AppX Deployment Service Privilege Escalation Vulnerability","description":"An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1129.","summary":"Windows AppX Deployment Service (AppXSVC) mishandles hard links, letting a local user escalate privileges. An attacker with a foothold on the machine can gain higher system rights.","severity":"high","cvss":7.8,"epss":0.01719,"exploited":true,"exploited_at":"2022-05-23T00:00:00+00:00","products":[{"name":"Microsoft Windows","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","ransomware","windows"],"not_affected_if":["patched-systems"],"how_to_check":null,"fix":"Apply the Microsoft Windows security update for CVE-2019-1130 per vendor instructions (CISA required action); the specific KB is unknown from the sources.","status":"open","published_at":"2019-07-15T19:15:21+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:16:01+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T21:16:01Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft Windows security update for CVE-2019-1130 per vendor instructions (CISA required action); the specific KB is unknown from the sources.","reach":"local","impact":"high","summary":"Windows AppX Deployment Service (AppXSVC) mishandles hard links, letting a local user escalate privileges. An attacker with a foothold on the machine can gain higher system rights.","category":"infrastructure","who_cares":["windows"],"confidence":0.6,"needs_auth":"yes","worst_case":"local user gains SYSTEM-level privileges on the Windows machine","analyst_note":"Confirm affected Windows builds and patch KB numbers from the Microsoft advisory for CVE-2019-1130; the sources give no version or KB.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["patched-systems"],"user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000452,"input_tokens":2836,"output_tokens":336,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-1129':80C '-1130':13A,16A '-2019':12A,15A,79C 'aka':66C 'appx':5A,24B,58C 'appxsvc':27B,61C 'attack':38B 'cve':11A,14A,73C,78C 'deploy':6A,25B,59C 'elev':51C,68C 'escal':9A,35B 'exist':55C 'exploit':19B 'foothold':41B 'gain':46B 'handl':63C 'hard':29B,64C 'higher':47B 'id':74C 'improp':62C 'infrastructur':20B 'let':31B 'link':30B,65C 'local':33B 'machin':44B 'microsoft':1A,3A,17A 'mishandl':28B 'privileg':8A,36B,53C,70C 'ransomwar':21B 'right':49B 'servic':7A,26B,60C 'system':48B 'uniqu':76C 'user':34B 'vulner':10A,54C,71C 'window':2A,4A,22B,23B,57C,67C 'windows':18A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2019-07-15T19:15:21+00:00","kev":{"dateAdded":"2022-05-23","dueDate":"2022-06-13","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-2019-1130","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2019-1130","severity":null,"published_at":"2022-05-23T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T15:39:42+00:00","note":null},{"source":"epss","external_id":"CVE-2019-1130","url":"https://api.first.org/data/v1/epss?cve=CVE-2019-1130","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:45+00:00","fetched_at":"2026-10-23T19:13:45+00:00","note":null},{"source":"nvd","external_id":"CVE-2019-1130","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-1130","severity":null,"published_at":"2019-07-15T19:15:21+00:00","modified_at":"2026-08-12T05:17:23+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"}