{"id":"CVE-2026-94522","kind":"vulnerability","aliases":["CVE-2026-94522"],"related":[],"title":"Windows Kernel Transaction Manager: use-after-free lets a local user gain privileges","description":"Use after free in Kernel Transaction Manager allows an authorized attacker to elevate privileges locally.","summary":"A memory-handling bug in the Kernel Transaction Manager lets an attacker who already has a local account corrupt kernel memory and elevate privileges. The sources describe it only as a use-after-free that allows privilege elevation locally.","severity":"high","cvss":7.0,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","kernel","local-privilege-escalation","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:21:37+00:00","first_seen_at":"2026-11-10T19:25:21+00:00","triaged_at":"2026-11-10T19:49:57+00:00","updated_at":"2026-11-10T19:49:57+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:49:57Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Kernel Transaction Manager: use-after-free lets a local user gain privileges","impact":"high","summary":"A memory-handling bug in the Kernel Transaction Manager lets an attacker who already has a local account corrupt kernel memory and elevate privileges. The sources describe it only as a use-after-free that allows privilege elevation locally.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["kernel","windows","local-privilege-escalation"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local attacker gains kernel-level privileges on the machine","analyst_note":"Confirm affected Windows builds and the Microsoft patch from the NVD entry or the vendor advisory; sources give no product ranges.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Systems where untrusted or low-privileged users can log on locally are the ones that matter most. The sources do not list affected product versions, so unknown beyond the component name.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000663,"input_tokens":4484,"output_tokens":430,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Confirm affected Windows builds and the Microsoft patch from the NVD entry or the vendor advisory; sources give no product ranges.","search":"'-2026':16A,19A '-94522':17A,20A 'account':46B 'allow':65B,76C 'alreadi':42B 'attack':40B,79C 'author':78C 'bug':32B 'corrupt':47B 'cve':15A,18A 'describ':55B 'elev':51B,67B,81C 'escal':26B 'free':8A,63B,71C 'gain':13A 'handl':31B 'infrastructur':21B 'kernel':2A,22B,35B,48B,73C 'let':9A,38B 'local':11A,24B,45B,68B,83C 'local-privilege-escal':23B 'manag':4A,37B,75C 'memori':30B,49B 'memory-handl':29B 'privileg':14A,25B,52B,66B,82C 'sourc':54B 'transact':3A,36B,74C 'use':6A,61B,69C 'use-after-fre':5A,60B 'user':12A 'window':1A,27B","nicknames":[],"mitigations":[],"who_affected":"Systems where untrusted or low-privileged users can log on locally are the ones that matter most. The sources do not list affected product versions, so unknown beyond the component name.","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":"'-2026':16A,19A '-94522':17A,20A 'cve':15A,18A 'free':8A 'gain':13A 'kernel':2A 'let':9A 'local':11A 'manag':4A 'privileg':14A 'transact':3A 'use':6A 'use-after-fre':5A 'user':12A 'window':1A","search_b":"'account':46B 'allow':65B 'alreadi':42B 'attack':40B 'bug':32B 'corrupt':47B 'describ':55B 'elev':51B,67B 'escal':26B 'free':63B 'handl':31B 'infrastructur':21B 'kernel':22B,35B,48B 'let':38B 'local':24B,45B,68B 'local-privilege-escal':23B 'manag':37B 'memori':30B,49B 'memory-handl':29B 'privileg':25B,52B,66B 'sourc':54B 'transact':36B 'use':61B 'use-after-fre':60B 'window':27B","search_c":"'allow':76C 'attack':79C 'author':78C 'elev':81C 'free':71C 'kernel':73C 'local':83C 'manag':75C 'privileg':82C 'transact':74C 'use':69C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:21:37+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-2026-94522","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-94522","severity":null,"published_at":"2026-11-10T19:21:37+00:00","modified_at":"2026-11-10T19:21:38+00:00","first_seen_at":"2026-11-10T19:25:21+00:00","fetched_at":"2026-11-10T19:25:21+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"}