{"id":"CVE-2026-112805","kind":"vulnerability","aliases":["CVE-2026-112805"],"related":[],"title":"Windows Kernel: untrusted pointer lets a local user gain system privileges","description":"Untrusted pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.","summary":"A flaw in the Windows kernel lets an attacker who already has a local account dereference an untrusted pointer and raise their privileges. The sources give no further detail on the exact trigger.","severity":"high","cvss":8.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","kernel","local-privilege-escalation","windows"],"not_affected_if":["no-untrusted-local-users"],"how_to_check":"- Check the installed Windows build with `winver` and compare it against the Microsoft security update guide entry for CVE-2026-112805","fix":null,"status":"open","published_at":"2026-11-10T19:18:43+00:00","first_seen_at":"2026-11-10T19:24:34+00:00","triaged_at":"2026-11-10T19:31:49+00:00","updated_at":"2026-11-10T19:31:49+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-10T19:31:49Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Kernel: untrusted pointer lets a local user gain system privileges","impact":"high","summary":"A flaw in the Windows kernel lets an attacker who already has a local account dereference an untrusted pointer and raise their privileges. The sources give no further detail on the exact trigger.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","kernel","local-privilege-escalation"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"local attacker gains SYSTEM privileges on the machine","analyst_note":"Find the Microsoft advisory for CVE-2026-112805 to get affected builds and the patch; NVD text alone gives neither.","how_to_check":"- Check the installed Windows build with `winver` and compare it against the Microsoft security update guide entry for CVE-2026-112805\n- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["no-untrusted-local-users"],"who_is_affected":"Any Windows machine where an authorized local user could run code is in scope, since the attacker must already have a logon. The sources do not list affected Windows builds or whether servers and workstations differ. unknown","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000687,"input_tokens":4490,"output_tokens":476,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the Microsoft advisory for CVE-2026-112805 to get affected builds and the patch; NVD text alone gives neither.","search":"'-112805':14A,17A '-2026':13A,16A 'account':39B 'allow':64C 'alreadi':35B 'attack':33B,67C 'author':66C 'cve':12A,15A 'derefer':40B,60C 'detail':53B 'elev':69C 'escal':23B 'exact':56B 'flaw':26B 'gain':9A 'give':50B 'infrastructur':18B 'kernel':2A,19B,30B,63C 'let':5A,31B 'local':7A,21B,38B,71C 'local-privilege-escal':20B 'pointer':4A,43B,59C 'privileg':11A,22B,47B,70C 'rais':45B 'sourc':49B 'system':10A 'trigger':57B 'untrust':3A,42B,58C 'user':8A 'window':1A,24B,29B,62C","nicknames":[],"mitigations":[],"who_affected":"Any Windows machine where an authorized local user could run code is in scope, since the attacker must already have a logon. The sources do not list affected Windows builds or whether servers and workstations differ. unknown","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["high","infrastructure","kernel","localprivilegeescalation","windows"],"campaign_type":null,"search_a":"'-112805':14A,17A '-2026':13A,16A 'cve':12A,15A 'gain':9A 'kernel':2A 'let':5A 'local':7A 'pointer':4A 'privileg':11A 'system':10A 'untrust':3A 'user':8A 'window':1A","search_b":"'account':39B 'alreadi':35B 'attack':33B 'derefer':40B 'detail':53B 'escal':23B 'exact':56B 'flaw':26B 'give':50B 'infrastructur':18B 'kernel':19B,30B 'let':31B 'local':21B,38B 'local-privilege-escal':20B 'pointer':43B 'privileg':22B,47B 'rais':45B 'sourc':49B 'trigger':57B 'untrust':42B 'window':24B,29B","search_c":"'allow':64C 'attack':67C 'author':66C 'derefer':60C 'elev':69C 'kernel':63C 'local':71C 'pointer':59C 'privileg':70C 'untrust':58C 'window':62C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:18:43+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/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-2026-112805","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112805","severity":null,"published_at":"2026-11-10T19:18:43+00:00","modified_at":"2026-11-10T19:18:43+00:00","first_seen_at":"2026-11-10T19:24:34+00:00","fetched_at":"2026-11-10T19:24:34+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"}