{"id":"CVE-2026-112982","kind":"vulnerability","aliases":["CVE-2026-112982"],"related":[],"title":"Microsoft Account: missing authentication lets a local user tamper","description":"Missing authentication for critical function in Microsoft Account allows an authorized attacker to perform tampering locally.","summary":"A missing authentication check in Microsoft Account lets an authorized attacker tamper with a critical function on the local machine. The sources give no further detail on what is altered.","severity":"medium","cvss":5.5,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["microsoft-account","other","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:18:50+00:00","first_seen_at":"2026-11-10T19:24:36+00:00","triaged_at":"2026-11-10T20:02:04+00:00","updated_at":"2026-11-10T20:02:04+00:00","category":"other","confidence":0.4,"triage":{"at":"2026-11-10T20:02:04Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Microsoft Account: missing authentication lets a local user tamper","impact":"medium","summary":"A missing authentication check in Microsoft Account lets an authorized attacker tamper with a critical function on the local machine. The sources give no further detail on what is altered.","audience":"everyone","category":"other","nicknames":[],"who_cares":["microsoft-account","windows"],"confidence":0.4,"fix_status":"unknown","needs_auth":"yes","worst_case":"local attacker tampers with a critical Microsoft Account function","analyst_note":"Check the Microsoft Security Response Center entry for CVE-2026-112982 for affected products, versions and the fix; the NVD description alone is too thin.","how_to_check":"unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000622,"input_tokens":4486,"output_tokens":347,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-112982':12A,15A '-2026':11A,14A 'account':2A,18B,27B,58C 'allow':59C 'alter':50B 'attack':31B,62C 'authent':4A,23B,52C 'author':30B,61C 'check':24B 'critic':35B,54C 'cve':10A,13A 'detail':46B 'function':36B,55C 'give':43B 'let':5A,28B 'local':7A,39B,66C 'machin':40B 'microsoft':1A,17B,26B,57C 'microsoft-account':16B 'miss':3A,22B,51C 'perform':64C 'sourc':42B 'tamper':9A,32B,65C 'user':8A 'window':20B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"everyone","plain_action":null,"pkeys":[],"ptokens":[],"labels":["medium","microsoftaccount","other","windows"],"campaign_type":null,"search_a":"'-112982':12A,15A '-2026':11A,14A 'account':2A 'authent':4A 'cve':10A,13A 'let':5A 'local':7A 'microsoft':1A 'miss':3A 'tamper':9A 'user':8A","search_b":"'account':18B,27B 'alter':50B 'attack':31B 'authent':23B 'author':30B 'check':24B 'critic':35B 'detail':46B 'function':36B 'give':43B 'let':28B 'local':39B 'machin':40B 'microsoft':17B,26B 'microsoft-account':16B 'miss':22B 'sourc':42B 'tamper':32B 'window':20B","search_c":"'account':58C 'allow':59C 'attack':62C 'authent':52C 'author':61C 'critic':54C 'function':55C 'local':66C 'microsoft':57C 'miss':51C 'perform':64C 'tamper':65C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:18:50+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-112982","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112982","severity":null,"published_at":"2026-11-10T19:18:50+00:00","modified_at":"2026-11-10T19:18:50+00:00","first_seen_at":"2026-11-10T19:24:36+00:00","fetched_at":"2026-11-10T19:24:36+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"}