{"id":"CVE-2026-114170","kind":"vulnerability","aliases":["CVE-2026-114170"],"related":[],"title":"Windows Kernel: use-after-free lets a local user gain higher privileges","description":"Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.","summary":"A use-after-free flaw in the Windows kernel lets an attacker who already has a local account raise their privileges. The attacker gets the rights of a higher-privileged account or SYSTEM on the affected machine.","severity":"high","cvss":7.8,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Windows Kernel","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["infrastructure","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:19:10+00:00","first_seen_at":"2026-11-10T19:24:44+00:00","triaged_at":"2026-11-10T19:40:49+00:00","updated_at":"2026-11-10T19:40:49+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-10T19:40:49Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Kernel: use-after-free lets a local user gain higher privileges","impact":"high","summary":"A use-after-free flaw in the Windows kernel lets an attacker who already has a local account raise their privileges. The attacker gets the rights of a higher-privileged account or SYSTEM on the affected machine.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user gains SYSTEM-level privileges on the machine","analyst_note":"Check the Microsoft Security Response Center entry for CVE-2026-114170 for affected Windows builds and the patch.","how_to_check":"unknown","plain_action":"","product_name":"Windows Kernel","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Affected systems are Windows machines where a user can log on or run code locally; the sources do not list the affected Windows builds. Remote attackers without a local account are not described as able to exploit it. unknown","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000666,"input_tokens":4476,"output_tokens":436,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Check the Microsoft Security Response Center entry for CVE-2026-114170 for affected Windows builds and the patch.","search":"'-114170':16A,19A '-2026':15A,18A 'account':42B,56B 'affect':61B 'allow':69C 'alreadi':38B 'attack':36B,47B,72C 'author':71C 'cve':14A,17A 'elev':74C 'flaw':29B 'free':6A,28B,65C 'gain':11A 'get':48B 'higher':12A,54B 'higher-privileg':53B 'infrastructur':22B 'kernel':2A,21A,33B,68C 'let':7A,34B 'local':9A,41B,76C 'machin':62B 'privileg':13A,45B,55B,75C 'rais':43B 'right':50B 'system':58B 'use':4A,26B,63C 'use-after-fre':3A,25B 'user':10A 'window':1A,23B,32B,67C 'windows':20A","nicknames":[],"mitigations":[],"who_affected":"Affected systems are Windows machines where a user can log on or run code locally; the sources do not list the affected Windows builds. Remote attackers without a local account are not described as able to exploit it. unknown","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":["kernel","windowskernel"],"ptokens":["kernel","windows"],"labels":["high","infrastructure","vendor","windows"],"campaign_type":null,"search_a":"'-114170':16A,19A '-2026':15A,18A 'cve':14A,17A 'free':6A 'gain':11A 'higher':12A 'kernel':2A,21A 'let':7A 'local':9A 'privileg':13A 'use':4A 'use-after-fre':3A 'user':10A 'window':1A 'windows':20A","search_b":"'account':42B,56B 'affect':61B 'alreadi':38B 'attack':36B,47B 'flaw':29B 'free':28B 'get':48B 'higher':54B 'higher-privileg':53B 'infrastructur':22B 'kernel':33B 'let':34B 'local':41B 'machin':62B 'privileg':45B,55B 'rais':43B 'right':50B 'system':58B 'use':26B 'use-after-fre':25B 'window':23B,32B","search_c":"'allow':69C 'attack':72C 'author':71C 'elev':74C 'free':65C 'kernel':68C 'local':76C 'privileg':75C 'use':63C 'window':67C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:10+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-114170","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114170","severity":null,"published_at":"2026-11-10T19:19:10+00:00","modified_at":"2026-11-10T19:19:10+00:00","first_seen_at":"2026-11-10T19:24:44+00:00","fetched_at":"2026-11-10T19:24:44+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"}