{"id":"CVE-2026-105506","kind":"vulnerability","aliases":["CVE-2026-105506"],"related":[],"title":"Windows Shell: buffer over-read lets a local user read memory","description":"Buffer over-read in Windows Shell allows an authorized attacker to disclose information locally.","summary":"A buffer over-read in Windows Shell lets an attacker who already has a local account read memory beyond the intended buffer. The sources say the impact is information disclosure only.","severity":"medium","cvss":5.0,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Windows Shell","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["infrastructure","windows"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:17:49+00:00","first_seen_at":"2026-11-10T19:24:15+00:00","triaged_at":"2026-11-10T20:02:39+00:00","updated_at":"2026-11-10T20:02:39+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-10T20:02:39Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Shell: buffer over-read lets a local user read memory","impact":"low","summary":"A buffer over-read in Windows Shell lets an attacker who already has a local account read memory beyond the intended buffer. The sources say the impact is information disclosure only.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user reads memory it should not see","analyst_note":"Check the Microsoft Security Response Center entry for CVE-2026-105506 for affected Windows builds and the patch.","how_to_check":"unknown","plain_action":"","product_name":"Windows Shell","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000623,"input_tokens":4477,"output_tokens":350,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-105506':15A,18A '-2026':14A,17A 'account':39B 'allow':61C 'alreadi':35B 'attack':33B,64C 'author':63C 'beyond':42B 'buffer':3A,24B,45B,54C 'cve':13A,16A 'disclos':66C 'disclosur':53B 'impact':50B 'inform':52B,67C 'infrastructur':21B 'intend':44B 'let':7A,31B 'local':9A,38B,68C 'memori':12A,41B 'over-read':4A,25B,55C 'read':6A,11A,27B,40B,57C 'say':48B 'shell':2A,20A,30B,60C 'sourc':47B 'user':10A 'window':1A,22B,29B,59C 'windows':19A","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":["shell","windowsshell"],"ptokens":["shell","windows"],"labels":["infrastructure","medium","vendor","windows"],"campaign_type":null,"search_a":"'-105506':15A,18A '-2026':14A,17A 'buffer':3A 'cve':13A,16A 'let':7A 'local':9A 'memori':12A 'over-read':4A 'read':6A,11A 'shell':2A,20A 'user':10A 'window':1A 'windows':19A","search_b":"'account':39B 'alreadi':35B 'attack':33B 'beyond':42B 'buffer':24B,45B 'disclosur':53B 'impact':50B 'inform':52B 'infrastructur':21B 'intend':44B 'let':31B 'local':38B 'memori':41B 'over-read':25B 'read':27B,40B 'say':48B 'shell':30B 'sourc':47B 'window':22B,29B","search_c":"'allow':61C 'attack':64C 'author':63C 'buffer':54C 'disclos':66C 'inform':67C 'local':68C 'over-read':55C 'read':57C 'shell':60C 'window':59C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:17:49+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-105506","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105506","severity":null,"published_at":"2026-11-10T19:17:49+00:00","modified_at":"2026-11-10T19:17:49+00:00","first_seen_at":"2026-11-10T19:24:15+00:00","fetched_at":"2026-11-10T19:24:15+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"}