{"id":"CVE-2026-119389","kind":"vulnerability","aliases":["CVE-2026-119389"],"related":[],"title":"Windows Storage: use-after-free lets a local user gain higher privileges","description":"Use after free in Windows Storage allows an authorized attacker to elevate privileges locally.","summary":"A memory-handling flaw in the Windows Storage component lets a user who already has an account on the machine raise their privileges. An attacker who gets a local foothold can take control of the system beyond their assigned rights.","severity":"high","cvss":7.0,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Windows Storage","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["infrastructure","windows","windows-storage"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:19:53+00:00","first_seen_at":"2026-11-10T19:24:56+00:00","triaged_at":"2026-11-10T19:51:58+00:00","updated_at":"2026-11-10T19:51:58+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:51:58Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Storage: use-after-free lets a local user gain higher privileges","impact":"high","summary":"A memory-handling flaw in the Windows Storage component lets a user who already has an account on the machine raise their privileges. An attacker who gets a local foothold can take control of the system beyond their assigned rights.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","windows-storage"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user gains elevated system privileges, full machine control","analyst_note":"Check the Microsoft Security Update Guide entry for CVE-2026-119389 for affected Windows builds, the patch and any mitigation.","how_to_check":"- unknown","plain_action":"","product_name":"Windows Storage","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Systems running affected Windows versions where users can log on locally, including shared workstations and servers. The sources do not list affected Windows builds or whether any non-default setting is required. Remote attackers without a local account are not described as able to trigger it.","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000675,"input_tokens":4474,"output_tokens":456,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Check the Microsoft Security Update Guide entry for CVE-2026-119389 for affected Windows builds, the patch and any mitigation.","search":"'-119389':16A,19A '-2026':15A,18A 'account':44B 'allow':74C 'alreadi':41B 'assign':66B 'attack':52B,77C 'author':76C 'beyond':64B 'compon':36B 'control':60B 'cve':14A,17A 'elev':79C 'flaw':31B 'foothold':57B 'free':6A,70C 'gain':11A 'get':54B 'handl':30B 'higher':12A 'infrastructur':22B 'let':7A,37B 'local':9A,56B,81C 'machin':47B 'memori':29B 'memory-handl':28B 'privileg':13A,50B,80C 'rais':48B 'right':67B 'storag':2A,26B,35B,73C 'storage':21A 'system':63B 'take':59B 'use':4A,68C 'use-after-fre':3A 'user':10A,39B 'window':1A,23B,25B,34B,72C 'windows':20A 'windows-storag':24B","nicknames":[],"mitigations":[],"who_affected":"Systems running affected Windows versions where users can log on locally, including shared workstations and servers. The sources do not list affected Windows builds or whether any non-default setting is required. Remote attackers without a local account are not described as able to trigger it.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":["storage","windowsstorage"],"ptokens":["storage","windows"],"labels":["high","infrastructure","vendor","windows","windowsstorage"],"campaign_type":null,"search_a":"'-119389':16A,19A '-2026':15A,18A 'cve':14A,17A 'free':6A 'gain':11A 'higher':12A 'let':7A 'local':9A 'privileg':13A 'storag':2A 'storage':21A 'use':4A 'use-after-fre':3A 'user':10A 'window':1A 'windows':20A","search_b":"'account':44B 'alreadi':41B 'assign':66B 'attack':52B 'beyond':64B 'compon':36B 'control':60B 'flaw':31B 'foothold':57B 'get':54B 'handl':30B 'infrastructur':22B 'let':37B 'local':56B 'machin':47B 'memori':29B 'memory-handl':28B 'privileg':50B 'rais':48B 'right':67B 'storag':26B,35B 'system':63B 'take':59B 'user':39B 'window':23B,25B,34B 'windows-storag':24B","search_c":"'allow':74C 'attack':77C 'author':76C 'elev':79C 'free':70C 'local':81C 'privileg':80C 'storag':73C 'use':68C 'window':72C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:53+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-2026-119389","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119389","severity":null,"published_at":"2026-11-10T19:19:53+00:00","modified_at":"2026-11-10T19:19:53+00:00","first_seen_at":"2026-11-10T19:24:56+00:00","fetched_at":"2026-11-10T19:24:56+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"}