{"id":"CVE-2026-88230","kind":"vulnerability","aliases":["CVE-2026-88230"],"related":[],"title":"Windows LUAFV heap overflow lets a local user gain higher privileges","description":"Heap-based buffer overflow in Windows LUAFV allows an authorized attacker to elevate privileges locally.","summary":"A heap-based buffer overflow in the Windows LUAFV driver lets a logged-in attacker with some access raise their privileges on the machine. The sources give a CVSS score of 7.8 and say nothing about exploitation in the wild.","severity":"high","cvss":7.8,"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":"2026-11-10T19:21:31+00:00","first_seen_at":"2026-11-10T19:25:19+00:00","triaged_at":"2026-11-10T19:38:42+00:00","updated_at":"2026-11-10T19:38:42+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-10T19:38:42Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows LUAFV heap overflow lets a local user gain higher privileges","impact":"high","summary":"A heap-based buffer overflow in the Windows LUAFV driver lets a logged-in attacker with some access raise their privileges on the machine. The sources give a CVSS score of 7.8 and say nothing about exploitation in the wild.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows"],"confidence":0.6,"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-2026-88230 for affected Windows builds, the fixed update, and any detection guidance.","how_to_check":"unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Windows machines with the LUAFV driver are the affected component; the sources do not list affected Windows versions or builds. An attacker must already be authorized on the machine, so shared hosts and multi-user systems carry more risk than single-user desktops. unknown","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000672,"input_tokens":4492,"output_tokens":446,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Check the Microsoft Security Update Guide entry for CVE-2026-88230 for affected Windows builds, the fixed update, and any detection guidance.","search":"'-2026':13A,16A '-88230':14A,17A '7.8':53B 'access':39B 'allow':70C 'attack':36B,73C 'author':72C 'base':23B,64C 'buffer':24B,65C 'cve':12A,15A 'cvss':50B 'driver':30B 'elev':75C 'exploit':58B 'gain':9A 'give':48B 'heap':3A,22B,63C 'heap-bas':21B,62C 'higher':10A 'infrastructur':18B 'let':5A,31B 'local':7A,77C 'log':34B 'logged-in':33B 'luafv':2A,29B,69C 'machin':45B 'noth':56B 'overflow':4A,25B,66C 'privileg':11A,42B,76C 'rais':40B 'say':55B 'score':51B 'sourc':47B 'user':8A 'wild':61B 'window':1A,19B,28B,68C","nicknames":[],"mitigations":[],"who_affected":"Windows machines with the LUAFV driver are the affected component; the sources do not list affected Windows versions or builds. An attacker must already be authorized on the machine, so shared hosts and multi-user systems carry more risk than single-user desktops. 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":"'-2026':13A,16A '-88230':14A,17A 'cve':12A,15A 'gain':9A 'heap':3A 'higher':10A 'let':5A 'local':7A 'luafv':2A 'overflow':4A 'privileg':11A 'user':8A 'window':1A","search_b":"'7.8':53B 'access':39B 'attack':36B 'base':23B 'buffer':24B 'cvss':50B 'driver':30B 'exploit':58B 'give':48B 'heap':22B 'heap-bas':21B 'infrastructur':18B 'let':31B 'log':34B 'logged-in':33B 'luafv':29B 'machin':45B 'noth':56B 'overflow':25B 'privileg':42B 'rais':40B 'say':55B 'score':51B 'sourc':47B 'wild':61B 'window':19B,28B","search_c":"'allow':70C 'attack':73C 'author':72C 'base':64C 'buffer':65C 'elev':75C 'heap':63C 'heap-bas':62C 'local':77C 'luafv':69C 'overflow':66C 'privileg':76C 'window':68C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:21:31+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-2026-88230","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-88230","severity":null,"published_at":"2026-11-10T19:21:31+00:00","modified_at":"2026-11-10T19:21:31+00:00","first_seen_at":"2026-11-10T19:25:19+00:00","fetched_at":"2026-11-10T19:25:19+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"}