{"id":"CVE-2026-119403","kind":"vulnerability","aliases":["CVE-2026-119403"],"related":[],"title":"Windows Broadcast DVR service flaw lets a local user gain higher privileges","description":"Use after free in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.","summary":"A use-after-free bug in the Windows Broadcast DVR User Service lets an attacker who already has a local account raise their privileges. The sources give no more detail on the trigger or the affected Windows builds.","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":"2026-11-10T19:19:55+00:00","first_seen_at":"2026-11-10T19:24:57+00:00","triaged_at":"2026-11-10T19:51:53+00:00","updated_at":"2026-11-10T19:51:53+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:51:53Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Broadcast DVR service flaw lets a local user gain higher privileges","impact":"high","summary":"A use-after-free bug in the Windows Broadcast DVR User Service lets an attacker who already has a local account raise their privileges. The sources give no more detail on the trigger or the affected Windows builds.","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 Windows","analyst_note":"Find the Microsoft advisory for CVE-2026-119403 to confirm affected Windows builds, the fixed update, and whether the Broadcast DVR service is enabled by default.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Windows machines running the Broadcast DVR User Service are the systems in question, and the attacker needs a local account on them. The sources do not list affected Windows builds or whether the service is enabled by default. unknown","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000664,"input_tokens":4490,"output_tokens":431,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the Microsoft advisory for CVE-2026-119403 to confirm affected Windows builds, the fixed update, and whether the Broadcast DVR service is enabled by default.","search":"'-119403':15A,18A '-2026':14A,17A 'account':42B 'affect':57B 'allow':69C 'alreadi':38B 'attack':36B,72C 'author':71C 'broadcast':2A,30B,65C 'bug':26B 'build':59B 'cve':13A,16A 'detail':51B 'dvr':3A,31B,66C 'elev':74C 'flaw':5A 'free':25B,62C 'gain':10A 'give':48B 'higher':11A 'infrastructur':19B 'let':6A,34B 'local':8A,41B,76C 'privileg':12A,45B,75C 'rais':43B 'servic':4A,33B,68C 'sourc':47B 'trigger':54B 'use':23B,60C 'use-after-fre':22B 'user':9A,32B,67C 'window':1A,20B,29B,58B,64C","nicknames":[],"mitigations":[],"who_affected":"Windows machines running the Broadcast DVR User Service are the systems in question, and the attacker needs a local account on them. The sources do not list affected Windows builds or whether the service is enabled by default. 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":"'-119403':15A,18A '-2026':14A,17A 'broadcast':2A 'cve':13A,16A 'dvr':3A 'flaw':5A 'gain':10A 'higher':11A 'let':6A 'local':8A 'privileg':12A 'servic':4A 'user':9A 'window':1A","search_b":"'account':42B 'affect':57B 'alreadi':38B 'attack':36B 'broadcast':30B 'bug':26B 'build':59B 'detail':51B 'dvr':31B 'free':25B 'give':48B 'infrastructur':19B 'let':34B 'local':41B 'privileg':45B 'rais':43B 'servic':33B 'sourc':47B 'trigger':54B 'use':23B 'use-after-fre':22B 'user':32B 'window':20B,29B,58B","search_c":"'allow':69C 'attack':72C 'author':71C 'broadcast':65C 'dvr':66C 'elev':74C 'free':62C 'local':76C 'privileg':75C 'servic':68C 'use':60C 'user':67C 'window':64C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:55+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-2026-119403","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119403","severity":null,"published_at":"2026-11-10T19:19:55+00:00","modified_at":"2026-11-10T19:19:55+00:00","first_seen_at":"2026-11-10T19:24:57+00:00","fetched_at":"2026-11-10T19:24:57+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"}