{"id":"CVE-2026-40433","kind":"vulnerability","aliases":["CVE-2026-40433"],"related":[],"title":"Intel Wi-Fi driver for Windows: heap overflow in kernel crashes the system","description":"Heap-based buffer overflow for some Intel(R) PROSet Wireless Wi-Fi Software for Windows within Ring 0: Kernel may allow a denial of service. Network adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via adjacent network access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (high) and availability (high) impacts.","summary":"Some Intel PROSet Wireless Wi-Fi software for Windows has a heap-based buffer overflow in its kernel-level (Ring 0) code. A nearby network attacker can trigger it without credentials or user action, causing denial of service and potentially high integrity and availability impact.","severity":"high","cvss":8.5,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Intel PROSet/Wireless Wi-Fi software","fixed":["24.50"],"affected":"< 24.50","ecosystem":"vendor"}],"ecosystems":[],"tags":["adjacent-network","infrastructure","intel-wifi","kernel","laptops","windows"],"not_affected_if":["default-windows-driver","driver-24.50-or-later","linux","macos","no-intel-wifi-hardware","non-intel-wifi"],"how_to_check":"Find the installed Intel PROSet/Wireless Wi-Fi software or driver version (Device Manager > Network adapters > Intel Wi-Fi adapter > Driver tab, or Installed apps). Versions before 24.50 are affected. Affected adapters: Wireless-AC 9260/9461/9462/9560, Wi-Fi 6 AX201, Wi-Fi 6E AX210/AX211, Wi-Fi 7 BE200/BE201 (and Killer equivalents), plus integrated Wi-Fi on Intel Core 10th-14th gen and Core Ultra Series 1/2. Also check laptop-maker (e.g. Dell) driver updates, which may lag Intel's.","fix":"Update Intel PROSet/Wireless Wi-Fi software to version 24.50 or later (exe installer or IT admin package from Intel download center).","status":"open","published_at":"2026-11-10T18:17:38+00:00","first_seen_at":"2026-11-10T18:22:57+00:00","triaged_at":"2026-11-10T18:24:24+00:00","updated_at":"2026-11-10T18:29:01+00:00","category":"infrastructure","confidence":0.85,"triage":{"at":"2026-11-10T18:24:24Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Intel Wi-Fi driver for Windows: heap overflow in kernel crashes the system","impact":"high","summary":"Some Intel PROSet Wireless Wi-Fi software for Windows has a heap-based buffer overflow in its kernel-level (Ring 0) code. A nearby network attacker can trigger it without credentials or user action, causing denial of service and potentially high integrity and availability impact.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","intel-wifi","laptops"],"confidence":0.6,"fix_status":"unknown","needs_auth":"no","worst_case":"Kernel crash on the machine; possible integrity compromise from adjacent network","analyst_note":"Find the Intel security advisory for CVE-2026-40433 to get affected and fixed driver versions; NVD gives none.","how_to_check":"- Check the installed Intel PROSet/Wireless Wi-Fi Software version in Windows Settings or Device Manager, and compare it with the fixed version in the Intel advisory (unknown in the sources given)\n- Look for the Intel PROSet Wireless Software package in installed programs on Windows laptops and workstations","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["no-intel-wifi-hardware","default-windows-driver"],"who_is_affected":"Windows machines with Intel PROSet Wireless Wi-Fi Software installed are exposed, and the risk is reachable from the local network without credentials. Fleets of Intel-Wi-Fi laptops and workstations are the systems to look at. Machines using only the built-in Windows Wi-Fi driver or no Intel wireless hardware can skip it.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000787,"input_tokens":4675,"output_tokens":638,"severity_before":"high"},"analyst_status":"done","analyst_note":"Find the Intel security advisory for CVE-2026-40433 to get affected and fixed driver versions; NVD gives none.","search":"'-2026':16A,19A '-40433':17A,20A '0':60B,104C 'access':137C 'action':73B 'adjac':28B,135C 'adjacent-network':27B 'adversari':113C 'allow':107C 'attack':65B,123C,139C 'avail':83B,164C,179C 'base':51B,87C 'buffer':52B,88C 'caus':74B 'code':61B 'combin':118C 'complex':122C 'confidenti':159C,174C 'crash':12A 'credenti':70B 'cve':15A,18A 'denial':75B,109C,126C 'driver':5A 'enabl':125C 'fi':4A,25A,43B,98C 'heap':8A,50B,86C 'heap-bas':49B,85C 'high':80B,162C,165C,177C,180C 'impact':84B,157C,181C 'infrastructur':30B 'integr':81B,161C,176C 'intel':1A,21A,32B,38B,92C 'intel-wifi':31B 'interact':152C 'intern':146C 'kernel':11A,34B,57B,105C 'kernel-level':56B 'knowledg':147C 'laptop':35B 'level':58B 'low':121C 'may':106C,124C,131C,156C 'nearbi':63B 'network':29B,64B,112C,136C 'none':160C,175C 'occur':133C 'overflow':9A,53B,89C 'potenti':79B,132C,154C 'present':143C 'proset':39B,94C 'proset/wireless':22A 'r':93C 'requir':140C,149C 'result':130C,170C 'ring':59B,103C 'servic':77B,111C,128C 'softwar':44B,99C 'software':26A 'special':145C 'subsequ':172C 'system':14A,169C,173C 'trigger':67B 'unauthent':116C 'user':72B,117C,151C 'via':134C 'vulner':155C,168C 'wi':3A,24A,42B,97C 'wi-fi':2A,23A,41B,96C 'wifi':33B 'window':7A,36B,46B,101C 'wireless':40B,95C 'within':102C 'without':69B,144C","nicknames":[],"mitigations":[],"who_affected":"Windows laptops and desktops with an Intel Wi-Fi adapter (discrete or integrated in 10th-14th gen Core and Core Ultra) running PROSet/Wireless Wi-Fi software before 24.50. An attacker on the same (adjacent) network can trigger a kernel heap overflow without credentials or user action, causing denial of service; Intel rates integrity and availability impact high. Linux, macOS and machines without Intel Wi-Fi can skip it.","tier":"B","verified":{"fix":{"at":"2026-11-10T18:29:01Z","by":"analyst","doc":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01530.html","run_id":2501},"products":{"at":"2026-11-10T18:29:01Z","by":"analyst","doc":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01530.html","run_id":2501},"how_to_check":{"at":"2026-11-10T18:29:01Z","by":"analyst","doc":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01530.html","run_id":2501},"who_affected":{"at":"2026-11-10T18:29:01Z","by":"analyst","doc":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01530.html","run_id":2501}},"analyst_revisit_at":null,"fix_status":"available","audience":"everyone","plain_action":"Update your Intel Wi-Fi driver to version 24.50 or later using Intel's driver download page or your laptop maker's update tool.","pkeys":["intelprosetwirelesswifisoftware","prosetwirelesswifisoftware"],"ptokens":["fi","intel","proset","software","wi","wireless"],"labels":["adjacentnetwork","high","infrastructure","intelwifi","kernel","laptops","windows"],"campaign_type":null,"search_a":"'-2026':16A,19A '-40433':17A,20A 'crash':12A 'cve':15A,18A 'driver':5A 'fi':4A,25A 'heap':8A 'intel':1A,21A 'kernel':11A 'overflow':9A 'proset/wireless':22A 'software':26A 'system':14A 'wi':3A,24A 'wi-fi':2A,23A 'window':7A","search_b":"'0':60B 'action':73B 'adjac':28B 'adjacent-network':27B 'attack':65B 'avail':83B 'base':51B 'buffer':52B 'caus':74B 'code':61B 'credenti':70B 'denial':75B 'fi':43B 'heap':50B 'heap-bas':49B 'high':80B 'impact':84B 'infrastructur':30B 'integr':81B 'intel':32B,38B 'intel-wifi':31B 'kernel':34B,57B 'kernel-level':56B 'laptop':35B 'level':58B 'nearbi':63B 'network':29B,64B 'overflow':53B 'potenti':79B 'proset':39B 'ring':59B 'servic':77B 'softwar':44B 'trigger':67B 'user':72B 'wi':42B 'wi-fi':41B 'wifi':33B 'window':36B,46B 'wireless':40B 'without':69B","search_c":"'0':104C 'access':137C 'adjac':135C 'adversari':113C 'allow':107C 'attack':123C,139C 'avail':164C,179C 'base':87C 'buffer':88C 'combin':118C 'complex':122C 'confidenti':159C,174C 'denial':109C,126C 'enabl':125C 'fi':98C 'heap':86C 'heap-bas':85C 'high':162C,165C,177C,180C 'impact':157C,181C 'integr':161C,176C 'intel':92C 'interact':152C 'intern':146C 'kernel':105C 'knowledg':147C 'low':121C 'may':106C,124C,131C,156C 'network':112C,136C 'none':160C,175C 'occur':133C 'overflow':89C 'potenti':132C,154C 'present':143C 'proset':94C 'r':93C 'requir':140C,149C 'result':130C,170C 'ring':103C 'servic':111C,128C 'softwar':99C 'special':145C 'subsequ':172C 'system':169C,173C 'unauthent':116C 'user':117C,151C 'via':134C 'vulner':155C,168C 'wi':97C 'wi-fi':96C 'window':101C 'wireless':95C 'within':102C 'without':144C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T18:17:38+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"secure@intel.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-40433","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40433","severity":null,"published_at":"2026-11-10T18:17:38+00:00","modified_at":"2026-11-10T18:17:38+00:00","first_seen_at":"2026-11-10T18:22:57+00:00","fetched_at":"2026-11-10T18:22:57+00:00","note":null},{"source":"analyst","external_id":"CVE-2026-40433:2501","url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01530.html","severity":null,"published_at":"2026-11-10T18:29:01+00:00","modified_at":"2026-11-10T18:29:01+00:00","first_seen_at":"2026-11-10T18:29:01+00:00","fetched_at":"2026-11-10T18:29:01+00:00","note":"Read Intel INTEL-SA-01530 (released 2026-11-10): CVE-2026-40433 heap overflow in PROSet/Wireless Wi-Fi software for Windows (Ring 0), adjacent network, no auth/interaction, CVSS 4.0 8.5; fixed in 24.50. No exploitation or PoC claimed in advisory; X/social not checked. Reporter: Adonis.","cites":["https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01530.html"]}],"documents":[{"id":117068,"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01530.html","title":"INTEL-SA-01530 Intel PROSet/Wireless WiFi and Wireless Bluetooth Advisory","kind":"advisory","source":"analyst","publisher":null,"text":null,"published_at":null,"relation":"advisory","confidence":null,"note":null}],"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"}