{"id":"CVE-2026-119394","kind":"vulnerability","aliases":["CVE-2026-119394"],"related":[],"title":"Windows: Enhanced Storage heap overflow lets a physically present user run code","description":"Heap-based buffer overflow in Windows Enhanced Storage allows an authorized attacker to execute code with a physical attack.","summary":"A heap-based buffer overflow in Windows Enhanced Storage lets an authorized attacker run code when they have physical access to the machine. The sources give no fixed version or other details.","severity":"medium","cvss":6.6,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["enhanced-storage","infrastructure","windows"],"not_affected_if":["no-physical-access"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:19:54+00:00","first_seen_at":"2026-11-10T19:24:56+00:00","triaged_at":"2026-11-10T19:56:00+00:00","updated_at":"2026-11-10T19:56:00+00:00","category":"infrastructure","confidence":0.4,"triage":{"at":"2026-11-10T19:56:00Z","model":"claude-haiku-5-5","output":{"fix":"- unknown","reach":"local","title":"Windows: Enhanced Storage heap overflow lets a physically present user run code","impact":"high","summary":"A heap-based buffer overflow in Windows Enhanced Storage lets an authorized attacker run code when they have physical access to the machine. The sources give no fixed version or other details.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","enhanced-storage"],"confidence":0.4,"fix_status":"unknown","needs_auth":"yes","worst_case":"code runs with physical access on the device","analyst_note":"Check the Microsoft Security Update Guide entry for CVE-2026-119394 for affected Windows builds, fixed builds and any hardware or Enhanced Storage prerequisites.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["no-physical-access"],"who_is_affected":"Windows machines with Enhanced Storage components, where an attacker has both a local account and physical access to the device. The sources do not say which Windows versions or configurations are affected.","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000662,"input_tokens":4500,"output_tokens":424,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-119394':15A,18A '-2026':14A,17A 'access':44B 'allow':66C 'attack':37B,69C,76C 'author':36B,68C 'base':27B,59C 'buffer':28B,60C 'code':12A,39B,72C 'cve':13A,16A 'detail':56B 'enhanc':2A,20B,32B,64C 'enhanced-storag':19B 'execut':71C 'fix':52B 'give':50B 'heap':4A,26B,58C 'heap-bas':25B,57C 'infrastructur':22B 'let':6A,34B 'machin':47B 'overflow':5A,29B,61C 'physic':8A,43B,75C 'present':9A 'run':11A,38B 'sourc':49B 'storag':3A,21B,33B,65C 'user':10A 'version':53B 'window':1A,23B,31B,63C","nicknames":[],"mitigations":[],"who_affected":"Windows machines with Enhanced Storage components, where an attacker has both a local account and physical access to the device. The sources do not say which Windows versions or configurations are affected.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["enhancedstorage","infrastructure","medium","windows"],"campaign_type":null,"search_a":"'-119394':15A,18A '-2026':14A,17A 'code':12A 'cve':13A,16A 'enhanc':2A 'heap':4A 'let':6A 'overflow':5A 'physic':8A 'present':9A 'run':11A 'storag':3A 'user':10A 'window':1A","search_b":"'access':44B 'attack':37B 'author':36B 'base':27B 'buffer':28B 'code':39B 'detail':56B 'enhanc':20B,32B 'enhanced-storag':19B 'fix':52B 'give':50B 'heap':26B 'heap-bas':25B 'infrastructur':22B 'let':34B 'machin':47B 'overflow':29B 'physic':43B 'run':38B 'sourc':49B 'storag':21B,33B 'version':53B 'window':23B,31B","search_c":"'allow':66C 'attack':69C,76C 'author':68C 'base':59C 'buffer':60C 'code':72C 'enhanc':64C 'execut':71C 'heap':58C 'heap-bas':57C 'overflow':61C 'physic':75C 'storag':65C 'window':63C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:54+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:P/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-2026-119394","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119394","severity":null,"published_at":"2026-11-10T19:19:54+00:00","modified_at":"2026-11-10T19:19:54+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"}