{"id":"CVE-2026-119830","kind":"vulnerability","aliases":["CVE-2026-119830"],"related":[],"title":"Windows Storport Miniport driver overflow lets attacker gain higher privileges","description":"Heap-based buffer overflow in Windows Storport Miniport Driver allows an unauthorized attacker to elevate privileges with a physical attack.","summary":"A heap-based buffer overflow in the Windows Storport Miniport driver can be used to elevate privileges. Per the description, exploitation requires physical access to the machine.","severity":"medium","cvss":6.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["drivers","infrastructure","storport","windows"],"not_affected_if":["no-physical-access","non-windows"],"how_to_check":"- Check the installed Windows build and compare it against Microsoft's security update guide entry for CVE-2026-119830 (unknown if the sources give the affected build range).\n- Review whether the machine is a shared or physically accessible device, since the sources describe a physical attack.","fix":null,"status":"open","published_at":"2026-11-10T19:19:58+00:00","first_seen_at":"2026-11-10T19:24:58+00:00","triaged_at":"2026-11-10T19:55:40+00:00","updated_at":"2026-11-10T19:55:40+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T19:55:40Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows Storport Miniport driver overflow lets attacker gain higher privileges","impact":"high","summary":"A heap-based buffer overflow in the Windows Storport Miniport driver can be used to elevate privileges. Per the description, exploitation requires physical access to the machine.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","storport","drivers"],"confidence":0.5,"fix_status":"unknown","needs_auth":"unknown","worst_case":"Attacker with physical access gains elevated privileges on the machine.","analyst_note":"Confirm affected Windows builds and the Microsoft fixed-build list for CVE-2026-119830 from the NVD or Microsoft Security Update Guide entry.","how_to_check":"- Check the installed Windows build and compare it against Microsoft's security update guide entry for CVE-2026-119830 (unknown if the sources give the affected build range).\n- Review whether the machine is a shared or physically accessible device, since the sources describe a physical attack.","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["no-physical-access","non-windows"],"who_is_affected":"Affects Windows systems that use the Storport Miniport driver stack. Per the description, an attacker needs physical access to the machine, so locked-down servers and managed endpoints with controlled physical access face lower exposure. The sources do not list affected Windows builds.","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000723,"input_tokens":4510,"output_tokens":544,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-119830':13A,16A '-2026':12A,15A 'access':45B 'allow':59C 'attack':7A,62C,69C 'base':24B,51C 'buffer':25B,52C 'cve':11A,14A 'descript':41B 'driver':4A,17B,32B,58C 'elev':37B,64C 'exploit':42B 'gain':8A 'heap':23B,50C 'heap-bas':22B,49C 'higher':9A 'infrastructur':18B 'let':6A 'machin':48B 'miniport':3A,31B,57C 'overflow':5A,26B,53C 'per':39B 'physic':44B,68C 'privileg':10A,38B,65C 'requir':43B 'storport':2A,19B,30B,56C 'unauthor':61C 'use':35B 'window':1A,20B,29B,55C","nicknames":[],"mitigations":[],"who_affected":"Affects Windows systems that use the Storport Miniport driver stack. Per the description, an attacker needs physical access to the machine, so locked-down servers and managed endpoints with controlled physical access face lower exposure. The sources do not list affected Windows builds.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["drivers","infrastructure","medium","storport","windows"],"campaign_type":null,"search_a":"'-119830':13A,16A '-2026':12A,15A 'attack':7A 'cve':11A,14A 'driver':4A 'gain':8A 'higher':9A 'let':6A 'miniport':3A 'overflow':5A 'privileg':10A 'storport':2A 'window':1A","search_b":"'access':45B 'base':24B 'buffer':25B 'descript':41B 'driver':17B,32B 'elev':37B 'exploit':42B 'heap':23B 'heap-bas':22B 'infrastructur':18B 'machin':48B 'miniport':31B 'overflow':26B 'per':39B 'physic':44B 'privileg':38B 'requir':43B 'storport':19B,30B 'use':35B 'window':20B,29B","search_c":"'allow':59C 'attack':62C,69C 'base':51C 'buffer':52C 'driver':58C 'elev':64C 'heap':50C 'heap-bas':49C 'miniport':57C 'overflow':53C 'physic':68C 'privileg':65C 'storport':56C 'unauthor':61C 'window':55C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:58+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-119830","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-119830","severity":null,"published_at":"2026-11-10T19:19:58+00:00","modified_at":"2026-11-10T19:19:58+00:00","first_seen_at":"2026-11-10T19:24:58+00:00","fetched_at":"2026-11-10T19:24:58+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"}