{"id":"CVE-2026-122183","kind":"vulnerability","aliases":["CVE-2026-122183"],"related":[],"title":"Windows Kernel: out-of-bounds read lets a local user gain higher privileges","description":"Out-of-bounds read in Windows Kernel allows an authorized attacker to elevate privileges locally.","summary":"A flaw in the Windows kernel reads memory past the end of a buffer. An attacker with a local account can use it to elevate privileges to a higher level on the machine.","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":"2026-11-10T19:20:36+00:00","first_seen_at":"2026-11-10T19:25:11+00:00","triaged_at":"2026-11-10T19:38:55+00:00","updated_at":"2026-11-10T19:38:55+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:38:55Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Kernel: out-of-bounds read lets a local user gain higher privileges","impact":"high","summary":"A flaw in the Windows kernel reads memory past the end of a buffer. An attacker with a local account can use it to elevate privileges to a higher level on the machine.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user gains full system privileges on the machine","analyst_note":"Check the Microsoft security update guide entry for CVE-2026-122183 for affected Windows builds and the patched version.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Windows machines where a user can log in or run code locally. The sources do not name affected Windows builds or whether a patch exists.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000632,"input_tokens":4486,"output_tokens":367,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Check the Microsoft security update guide entry for CVE-2026-122183 for affected Windows builds and the patched version.","search":"'-122183':17A,20A '-2026':16A,19A 'account':42B 'allow':64C 'attack':38B,67C 'author':66C 'bound':6A,59C 'buffer':36B 'cve':15A,18A 'elev':47B,69C 'end':33B 'flaw':24B 'gain':12A 'higher':13A,51B 'infrastructur':21B 'kernel':2A,28B,63C 'let':8A 'level':52B 'local':10A,41B,71C 'machin':55B 'memori':30B 'out-of-bound':3A,56C 'past':31B 'privileg':14A,48B,70C 'read':7A,29B,60C 'use':44B 'user':11A 'window':1A,22B,27B,62C","nicknames":[],"mitigations":[],"who_affected":"Windows machines where a user can log in or run code locally. The sources do not name affected Windows builds or whether a patch exists.","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":"'-122183':17A,20A '-2026':16A,19A 'bound':6A 'cve':15A,18A 'gain':12A 'higher':13A 'kernel':2A 'let':8A 'local':10A 'out-of-bound':3A 'privileg':14A 'read':7A 'user':11A 'window':1A","search_b":"'account':42B 'attack':38B 'buffer':36B 'elev':47B 'end':33B 'flaw':24B 'higher':51B 'infrastructur':21B 'kernel':28B 'level':52B 'local':41B 'machin':55B 'memori':30B 'past':31B 'privileg':48B 'read':29B 'use':44B 'window':22B,27B","search_c":"'allow':64C 'attack':67C 'author':66C 'bound':59C 'elev':69C 'kernel':63C 'local':71C 'out-of-bound':56C 'privileg':70C 'read':60C 'window':62C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:20:36+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-2026-122183","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-122183","severity":null,"published_at":"2026-11-10T19:20:36+00:00","modified_at":"2026-11-10T19:20:36+00:00","first_seen_at":"2026-11-10T19:25:11+00:00","fetched_at":"2026-11-10T19:25:11+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"}