{"id":"CVE-2026-89142","kind":"vulnerability","aliases":["CVE-2026-89142"],"related":[],"title":"Wi-Fi NPU firmware: out-of-bounds write can crash the device locally","description":"In the Wi-Fi NPU FW, there is a possible out-of-bounds write due to an incorrect bounds check. This could lead to local denial of service with user execution privileges needed. User interaction is not needed for exploitation.","summary":"The Wi-Fi NPU firmware has a bounds check that is wrong, allowing an out-of-bounds write. A local user with execution privileges can trigger a denial of service.","severity":"medium","cvss":6.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","npu-firmware","wi-fi"],"not_affected_if":["no-local-user-access"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-06T04:16:35+00:00","first_seen_at":"2026-11-06T04:39:38+00:00","triaged_at":"2026-11-06T04:40:07+00:00","updated_at":"2026-11-06T04:40:07+00:00","category":"infrastructure","confidence":0.4,"triage":{"at":"2026-11-06T04:40:07Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Wi-Fi NPU firmware: out-of-bounds write can crash the device locally","impact":"low","summary":"The Wi-Fi NPU firmware has a bounds check that is wrong, allowing an out-of-bounds write. A local user with execution privileges can trigger a denial of service.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["wi-fi","npu-firmware"],"confidence":0.4,"fix_status":"unknown","needs_auth":"yes","worst_case":"local denial of service from a local user with execution rights","analyst_note":"Identify the vendor, affected firmware and fixed versions for the Wi-Fi NPU FW; the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2026-89142 lists no product ranges.","how_to_check":"unknown","plain_action":"","needs_analyst":true,"not_affected_if":["no-local-user-access"],"who_is_affected":"Systems with the affected Wi-Fi NPU firmware installed. The sources do not name the vendor, product models or firmware versions affected. Exploitation requires a local account with execution privileges.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000647,"input_tokens":4201,"output_tokens":454,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':17A,20A '-89142':18A,21A 'allow':42B 'bound':9A,37B,47B,75C,81C 'check':38B,82C 'could':84C 'crash':12A 'cve':16A,19A 'denial':58B,88C 'devic':14A 'due':77C 'execut':53B,93C 'exploit':102C 'fi':3A,28B,32B,65C 'firmwar':5A,25B,34B 'fw':67C 'incorrect':80C 'infrastructur':22B 'interact':97C 'lead':85C 'local':15A,50B,87C 'need':95C,100C 'npu':4A,24B,33B,66C 'npu-firmwar':23B 'out-of-bound':6A,44B,72C 'possibl':71C 'privileg':54B,94C 'servic':60B,90C 'trigger':56B 'user':51B,92C,96C 'wi':2A,27B,31B,64C 'wi-fi':1A,26B,30B,63C 'write':10A,48B,76C 'wrong':41B","nicknames":[],"mitigations":[],"who_affected":"Systems with the affected Wi-Fi NPU firmware installed. The sources do not name the vendor, product models or firmware versions affected. Exploitation requires a local account with execution privileges.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["infrastructure","medium","npufirmware","wifi"],"campaign_type":null,"search_a":"'-2026':17A,20A '-89142':18A,21A 'bound':9A 'crash':12A 'cve':16A,19A 'devic':14A 'fi':3A 'firmwar':5A 'local':15A 'npu':4A 'out-of-bound':6A 'wi':2A 'wi-fi':1A 'write':10A","search_b":"'allow':42B 'bound':37B,47B 'check':38B 'denial':58B 'execut':53B 'fi':28B,32B 'firmwar':25B,34B 'infrastructur':22B 'local':50B 'npu':24B,33B 'npu-firmwar':23B 'out-of-bound':44B 'privileg':54B 'servic':60B 'trigger':56B 'user':51B 'wi':27B,31B 'wi-fi':26B,30B 'write':48B 'wrong':41B","search_c":"'bound':75C,81C 'check':82C 'could':84C 'denial':88C 'due':77C 'execut':93C 'exploit':102C 'fi':65C 'fw':67C 'incorrect':80C 'interact':97C 'lead':85C 'local':87C 'need':95C,100C 'npu':66C 'out-of-bound':72C 'possibl':71C 'privileg':94C 'servic':90C 'user':92C,96C 'wi':64C 'wi-fi':63C 'write':76C","first_public_at":"2026-11-06T04:16:35+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H","cvss_by":"34e3dd7a-f061-4e75-a5eb-9fce7dd970ab","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-89142","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89142","severity":null,"published_at":"2026-11-06T04:16:35+00:00","modified_at":"2026-11-06T04:16:35+00:00","first_seen_at":"2026-11-06T04:39:38+00:00","fetched_at":"2026-11-06T04:39:38+00:00","note":null}],"documents":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}