{"id":"CVE-2026-119866","kind":"vulnerability","aliases":["CVE-2026-119866"],"related":[],"title":"Windows Device Association Service: use-after-free lets a local user gain higher privileges","description":"Use after free in Windows Device Association Service allows an authorized attacker to elevate privileges locally.","summary":"A memory-handling bug in the Windows Device Association Service lets an attacker who already has a local account raise their privileges. The sources do not say whether it runs code or only reads data.","severity":"high","cvss":7.0,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:20:05+00:00","first_seen_at":"2026-11-10T19:25:00+00:00","triaged_at":"2026-11-10T19:51:41+00:00","updated_at":"2026-11-10T19:51:41+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:51:41Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Device Association Service: use-after-free lets a local user gain higher privileges","impact":"high","summary":"A memory-handling bug in the Windows Device Association Service lets an attacker who already has a local account raise their privileges. The sources do not say whether it runs code or only reads data.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"Local user gains elevated system privileges on the machine","analyst_note":"Find the Microsoft advisory for CVE-2026-119866 to confirm affected Windows builds, the fixed update and whether the service is on by default.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Affects Windows machines where the Device Association Service is present; an attacker must already be authorized on the machine. The sources do not list affected Windows builds or whether the service runs by default, so unknown.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000651,"input_tokens":4480,"output_tokens":405,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the Microsoft advisory for CVE-2026-119866 to confirm affected Windows builds, the fixed update and whether the service is on by default.","search":"'-119866':18A,21A '-2026':17A,20A 'account':43B 'allow':68C 'alreadi':39B 'associ':3A,33B,66C 'attack':37B,71C 'author':70C 'bug':28B 'code':55B 'cve':16A,19A 'data':59B 'devic':2A,32B,65C 'elev':73C 'free':8A,62C 'gain':13A 'handl':27B 'higher':14A 'infrastructur':22B 'let':9A,35B 'local':11A,42B,75C 'memori':26B 'memory-handl':25B 'privileg':15A,46B,74C 'rais':44B 'read':58B 'run':54B 'say':51B 'servic':4A,34B,67C 'sourc':48B 'use':6A,60C 'use-after-fre':5A 'user':12A 'whether':52B 'window':1A,23B,31B,64C","nicknames":[],"mitigations":[],"who_affected":"Affects Windows machines where the Device Association Service is present; an attacker must already be authorized on the machine. The sources do not list affected Windows builds or whether the service runs by default, so unknown.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["high","infrastructure","windows"],"campaign_type":null,"search_a":"'-119866':18A,21A '-2026':17A,20A 'associ':3A 'cve':16A,19A 'devic':2A 'free':8A 'gain':13A 'higher':14A 'let':9A 'local':11A 'privileg':15A 'servic':4A 'use':6A 'use-after-fre':5A 'user':12A 'window':1A","search_b":"'account':43B 'alreadi':39B 'associ':33B 'attack':37B 'bug':28B 'code':55B 'data':59B 'devic':32B 'handl':27B 'infrastructur':22B 'let':35B 'local':42B 'memori':26B 'memory-handl':25B 'privileg':46B 'rais':44B 'read':58B 'run':54B 'say':51B 'servic':34B 'sourc':48B 'whether':52B 'window':23B,31B","search_c":"'allow':68C 'associ':66C 'attack':71C 'author':70C 'devic':65C 'elev':73C 'free':62C 'local':75C 'privileg':74C 'servic':67C 'use':60C 'window':64C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:20:05+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-119866","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119866","severity":null,"published_at":"2026-11-10T19:20:05+00:00","modified_at":"2026-11-10T19:20:05+00:00","first_seen_at":"2026-11-10T19:25:00+00:00","fetched_at":"2026-11-10T19:25:00+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}