{"id":"CVE-2026-119946","kind":"vulnerability","aliases":["CVE-2026-119946"],"related":[],"title":"Windows HTTP.sys: unauthorized network attacker can read some information","description":"Improper access control in Windows HTTP.sys allows an unauthorized attacker to disclose information over a network.","summary":"Windows HTTP.sys, the kernel driver that handles HTTP requests for IIS and other services, has an access control flaw. An unauthenticated attacker over the network can disclose information.","severity":"medium","cvss":5.9,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Windows HTTP.sys","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["http-sys","iis","infrastructure","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:20:17+00:00","first_seen_at":"2026-11-10T19:25:04+00:00","triaged_at":"2026-11-10T20:00:00+00:00","updated_at":"2026-11-10T20:00:00+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T20:00:00Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Windows HTTP.sys: unauthorized network attacker can read some information","impact":"low","summary":"Windows HTTP.sys, the kernel driver that handles HTTP requests for IIS and other services, has an access control flaw. An unauthenticated attacker over the network can disclose information.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","iis","http-sys"],"confidence":0.5,"fix_status":"unknown","needs_auth":"no","worst_case":"unauthenticated attacker reads some information from the server","analyst_note":"Find the Microsoft advisory for CVE-2026-119946 to confirm affected Windows builds, fixed updates and any non-default setting.","how_to_check":"unknown","plain_action":"","product_name":"Windows HTTP.sys","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"no","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.00064,"input_tokens":4487,"output_tokens":382,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-119946':12A,15A '-2026':11A,14A 'access':40B,53C 'allow':58C 'attack':5A,45B,61C 'control':41B,54C 'cve':10A,13A 'disclos':50B,63C 'driver':28B 'flaw':42B 'handl':30B 'http':19B,31B 'http-sys':18B 'http.sys':2A,17A,25B,57C 'ii':21B,34B 'improp':52C 'inform':9A,51B,64C 'infrastructur':22B 'kernel':27B 'network':4A,48B,67C 'read':7A 'request':32B 'servic':37B 'sys':20B 'unauthent':44B 'unauthor':3A,60C 'window':1A,23B,24B,56C 'windows':16A","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":["httpsys","windowshttpsys"],"ptokens":["http","sys","windows"],"labels":["httpsys","iis","infrastructure","medium","vendor","windows"],"campaign_type":null,"search_a":"'-119946':12A,15A '-2026':11A,14A 'attack':5A 'cve':10A,13A 'http.sys':2A,17A 'inform':9A 'network':4A 'read':7A 'unauthor':3A 'window':1A 'windows':16A","search_b":"'access':40B 'attack':45B 'control':41B 'disclos':50B 'driver':28B 'flaw':42B 'handl':30B 'http':19B,31B 'http-sys':18B 'http.sys':25B 'ii':21B,34B 'inform':51B 'infrastructur':22B 'kernel':27B 'network':48B 'request':32B 'servic':37B 'sys':20B 'unauthent':44B 'window':23B,24B","search_c":"'access':53C 'allow':58C 'attack':61C 'control':54C 'disclos':63C 'http.sys':57C 'improp':52C 'inform':64C 'network':67C 'unauthor':60C 'window':56C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:20:17+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-119946","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119946","severity":null,"published_at":"2026-11-10T19:20:17+00:00","modified_at":"2026-11-10T19:20:17+00:00","first_seen_at":"2026-11-10T19:25:04+00:00","fetched_at":"2026-11-10T19:25:04+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"}