{"id":"CVE-2026-113767","kind":"vulnerability","aliases":["CVE-2026-113767"],"related":[],"title":"Windows COM+ Event System: local attacker can elevate privileges","description":"Inclusion of functionality from untrusted control sphere in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.","summary":"The Windows COM+ Event System Service loads functionality from an untrusted control sphere. An authorized local user can use this to gain higher privileges on the machine.","severity":"high","cvss":7.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["com-plus","infrastructure","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:18:56+00:00","first_seen_at":"2026-11-10T19:24:40+00:00","triaged_at":"2026-11-10T19:40:58+00:00","updated_at":"2026-11-10T19:40:58+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:40:58Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows COM+ Event System: local attacker can elevate privileges","impact":"high","summary":"The Windows COM+ Event System Service loads functionality from an untrusted control sphere. An authorized local user can use this to gain higher privileges on the machine.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","com-plus"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user gains elevated privileges on the Windows machine","analyst_note":"Check the Microsoft Security Update Guide entry for CVE-2026-113767 for affected Windows builds, the fixed update, and whether the 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 COM+ Event System Service. The sources do not say which Windows builds are affected or whether the service is on by default. Exposure requires a local account on the machine, so systems with few interactive users carry less risk.","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000659,"input_tokens":4503,"output_tokens":418,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Check the Microsoft Security Update Guide entry for CVE-2026-113767 for affected Windows builds, the fixed update, and whether the service is enabled by default.","search":"'-113767':12A,15A '-2026':11A,14A 'allow':61C 'attack':6A,64C 'author':35B,63C 'com':2A,17B,23B,57C 'com-plus':16B 'control':32B,53C 'cve':10A,13A 'elev':8A,66C 'event':3A,24B,58C 'function':28B,50C 'gain':42B 'higher':43B 'inclus':48C 'infrastructur':19B 'load':27B 'local':5A,36B,68C 'machin':47B 'plus':18B 'privileg':9A,44B,67C 'servic':26B,60C 'sphere':33B,54C 'system':4A,25B,59C 'untrust':31B,52C 'use':39B 'user':37B 'window':1A,20B,22B,56C","nicknames":[],"mitigations":[],"who_affected":"Windows machines running the COM+ Event System Service. The sources do not say which Windows builds are affected or whether the service is on by default. Exposure requires a local account on the machine, so systems with few interactive users carry less risk.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["complus","high","infrastructure","windows"],"campaign_type":null,"search_a":"'-113767':12A,15A '-2026':11A,14A 'attack':6A 'com':2A 'cve':10A,13A 'elev':8A 'event':3A 'local':5A 'privileg':9A 'system':4A 'window':1A","search_b":"'author':35B 'com':17B,23B 'com-plus':16B 'control':32B 'event':24B 'function':28B 'gain':42B 'higher':43B 'infrastructur':19B 'load':27B 'local':36B 'machin':47B 'plus':18B 'privileg':44B 'servic':26B 'sphere':33B 'system':25B 'untrust':31B 'use':39B 'user':37B 'window':20B,22B","search_c":"'allow':61C 'attack':64C 'author':63C 'com':57C 'control':53C 'elev':66C 'event':58C 'function':50C 'inclus':48C 'local':68C 'privileg':67C 'servic':60C 'sphere':54C 'system':59C 'untrust':52C 'window':56C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:18:56+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/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-2026-113767","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113767","severity":null,"published_at":"2026-11-10T19:18:56+00:00","modified_at":"2026-11-10T19:18:56+00:00","first_seen_at":"2026-11-10T19:24:40+00:00","fetched_at":"2026-11-10T19:24:40+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"}