{"id":"CVE-2026-113769","kind":"vulnerability","aliases":["CVE-2026-113769"],"related":[],"title":"Windows COM+ Event System: use-after-free lets local users gain privileges","description":"Use after free in Windows COM+ Event System Service allows an authorized attacker to elevate privileges locally.","summary":"A use-after-free bug in the Windows COM+ Event System Service lets an attacker who already has a local account raise their privileges. The sources do not name the affected Windows versions or give a patch.","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":"2026-11-10T19:18:56+00:00","first_seen_at":"2026-11-10T19:24:40+00:00","triaged_at":"2026-11-10T19:52:14+00:00","updated_at":"2026-11-10T19:52:14+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-10T19:52:14Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows COM+ Event System: use-after-free lets local users gain privileges","impact":"high","summary":"A use-after-free bug in the Windows COM+ Event System Service lets an attacker who already has a local account raise their privileges. The sources do not name the affected Windows versions or give a patch.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user becomes SYSTEM administrator on the machine","analyst_note":"Find the Microsoft advisory for CVE-2026-113769 to confirm affected Windows builds and the fixed update.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Anyone running Windows machines where a user has a local account, including shared workstations and servers with multiple users. The sources do not name affected Windows builds or whether the COM+ Event System Service is enabled by default. unknown","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000653,"input_tokens":4486,"output_tokens":408,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the Microsoft advisory for CVE-2026-113769 to confirm affected Windows builds and the fixed update.","search":"'-113769':16A,19A '-2026':15A,18A 'account':43B 'affect':53B 'allow':69C 'alreadi':39B 'attack':37B,72C 'author':71C 'bug':27B 'com':2A,31B,65C 'cve':14A,17A 'elev':74C 'event':3A,32B,66C 'free':8A,26B,62C 'gain':12A 'give':57B 'infrastructur':20B 'let':9A,35B 'local':10A,42B,76C 'name':51B 'patch':59B 'privileg':13A,46B,75C 'rais':44B 'servic':34B,68C 'sourc':48B 'system':4A,33B,67C 'use':6A,24B,60C 'use-after-fre':5A,23B 'user':11A 'version':55B 'window':1A,21B,30B,54B,64C","nicknames":[],"mitigations":[],"who_affected":"Anyone running Windows machines where a user has a local account, including shared workstations and servers with multiple users. The sources do not name affected Windows builds or whether the COM+ Event System 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":"'-113769':16A,19A '-2026':15A,18A 'com':2A 'cve':14A,17A 'event':3A 'free':8A 'gain':12A 'let':9A 'local':10A 'privileg':13A 'system':4A 'use':6A 'use-after-fre':5A 'user':11A 'window':1A","search_b":"'account':43B 'affect':53B 'alreadi':39B 'attack':37B 'bug':27B 'com':31B 'event':32B 'free':26B 'give':57B 'infrastructur':20B 'let':35B 'local':42B 'name':51B 'patch':59B 'privileg':46B 'rais':44B 'servic':34B 'sourc':48B 'system':33B 'use':24B 'use-after-fre':23B 'version':55B 'window':21B,30B,54B","search_c":"'allow':69C 'attack':72C 'author':71C 'com':65C 'elev':74C 'event':66C 'free':62C 'local':76C 'privileg':75C 'servic':68C 'system':67C 'use':60C 'window':64C","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: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-2026-113769","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113769","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"}