{"id":"CVE-2026-119833","kind":"vulnerability","aliases":["CVE-2026-119833"],"related":[],"title":"Windows Message Queuing: untrusted pointer lets a local user gain higher privileges","description":"Untrusted pointer dereference in Windows Message Queuing allows an authorized attacker to elevate privileges locally.","summary":"Windows Message Queuing dereferences a pointer it does not trust, which lets an authorized local user elevate their privileges. The attacker needs a valid local account on the affected machine first.","severity":"high","cvss":7.0,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","message-queuing","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:19:58+00:00","first_seen_at":"2026-11-10T19:24:58+00:00","triaged_at":"2026-11-10T19:51:49+00:00","updated_at":"2026-11-10T19:51:49+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:51:49Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Message Queuing: untrusted pointer lets a local user gain higher privileges","impact":"high","summary":"Windows Message Queuing dereferences a pointer it does not trust, which lets an authorized local user elevate their privileges. The attacker needs a valid local account on the affected machine first.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","message-queuing"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user gains higher privileges on the Windows machine","analyst_note":"Check the Microsoft Security Update Guide entry for CVE-2026-119833 for affected Windows builds, whether Message Queuing (MSMQ) must be installed, and the patch.","how_to_check":"unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000634,"input_tokens":4494,"output_tokens":369,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Check the Microsoft Security Update Guide entry for CVE-2026-119833 for affected Windows builds, whether Message Queuing (MSMQ) must be installed, and the patch.","search":"'-119833':15A,18A '-2026':14A,17A 'account':49B 'affect':52B 'allow':62C 'attack':44B,65C 'author':37B,64C 'cve':13A,16A 'derefer':27B,57C 'elev':40B,67C 'first':54B 'gain':10A 'higher':11A 'infrastructur':19B 'let':6A,35B 'local':8A,38B,48B,69C 'machin':53B 'messag':2A,21B,25B,60C 'message-queu':20B 'need':45B 'pointer':5A,29B,56C 'privileg':12A,42B,68C 'queu':3A,22B,26B,61C 'trust':33B 'untrust':4A,55C 'user':9A,39B 'valid':47B 'window':1A,23B,24B,59C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["high","infrastructure","messagequeuing","windows"],"campaign_type":null,"search_a":"'-119833':15A,18A '-2026':14A,17A 'cve':13A,16A 'gain':10A 'higher':11A 'let':6A 'local':8A 'messag':2A 'pointer':5A 'privileg':12A 'queu':3A 'untrust':4A 'user':9A 'window':1A","search_b":"'account':49B 'affect':52B 'attack':44B 'author':37B 'derefer':27B 'elev':40B 'first':54B 'infrastructur':19B 'let':35B 'local':38B,48B 'machin':53B 'messag':21B,25B 'message-queu':20B 'need':45B 'pointer':29B 'privileg':42B 'queu':22B,26B 'trust':33B 'user':39B 'valid':47B 'window':23B,24B","search_c":"'allow':62C 'attack':65C 'author':64C 'derefer':57C 'elev':67C 'local':69C 'messag':60C 'pointer':56C 'privileg':68C 'queu':61C 'untrust':55C 'window':59C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:58+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-2026-119833","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119833","severity":null,"published_at":"2026-11-10T19:19:58+00:00","modified_at":"2026-11-10T19:19:58+00:00","first_seen_at":"2026-11-10T19:24:58+00:00","fetched_at":"2026-11-10T19:24:58+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"}