{"id":"CVE-2026-96051","kind":"vulnerability","aliases":["CVE-2026-96051"],"related":[],"title":"Windows USB driver out-of-bounds read lets a local user gain privileges","description":"Out-of-bounds read in Windows USB Driver allows an authorized attacker to elevate privileges locally.","summary":"A flaw in the Windows USB driver reads memory past the end of a buffer. An attacker with a local account can use it to raise their privileges on the machine.","severity":"high","cvss":7.0,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Windows USB Driver","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["endpoints","infrastructure","windows"],"not_affected_if":["no-local-untrusted-users"],"how_to_check":"Run winver to get the OS build, then look up CVE-2026-96051 in the Microsoft Security Update Guide to find the fixed build for that version. Settings > Windows Update > Update history should show a November 2026 (or later) cumulative update.","fix":"Install the November 2026 Windows cumulative security update (released 2026-11-10). The exact KB per build is unknown until the Update Guide entry is read.","status":"open","published_at":"2026-11-10T19:22:02+00:00","first_seen_at":"2026-11-10T19:25:28+00:00","triaged_at":"2026-11-10T19:49:27+00:00","updated_at":"2026-11-10T20:02:31+00:00","category":"infrastructure","confidence":0.4,"triage":{"at":"2026-11-10T19:49:27Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Windows USB driver out-of-bounds read lets a local user gain privileges","impact":"high","summary":"A flaw in the Windows USB driver reads memory past the end of a buffer. An attacker with a local account can use it to raise their privileges on the machine.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["windows","endpoints"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local user gains SYSTEM-level privileges on the machine","analyst_note":"Find the affected Windows builds and the fixed update in the Microsoft Security Update Guide entry for CVE-2026-96051.","how_to_check":"- Check the Windows build with `winver` and compare it against the Microsoft security update guide entry for CVE-2026-96051.\n- Confirm the latest Windows security updates are installed under Settings > Windows Update.","plain_action":"","product_name":"Windows USB Driver","needs_analyst":true,"not_affected_if":["no-local-untrusted-users"],"who_is_affected":"Windows machines with the affected USB driver. The attacker needs an authorized local account first, so exposure is mainly on shared or multi-user systems. unknown whether a specific Windows version is named in the sources.","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000703,"input_tokens":4488,"output_tokens":509,"severity_before":"high"},"analyst_status":"done","analyst_note":"Find the affected Windows builds and the fixed update in the Microsoft Security Update Guide entry for CVE-2026-96051.","search":"'-2026':16A,19A '-96051':17A,20A 'account':47B 'allow':67C 'attack':43B,70C 'author':69C 'bound':7A,61C 'buffer':41B 'cve':15A,18A 'driver':3A,23A,33B,66C 'elev':72C 'end':38B 'endpoint':24B 'flaw':28B 'gain':13A 'infrastructur':25B 'let':9A 'local':11A,46B,74C 'machin':57B 'memori':35B 'out-of-bound':4A,58C 'past':36B 'privileg':14A,54B,73C 'rais':52B 'read':8A,34B,62C 'usb':2A,22A,32B,65C 'use':49B 'user':12A 'window':1A,26B,31B,64C 'windows':21A","nicknames":[],"mitigations":[],"who_affected":"Windows machines with the affected USB driver. The attacker needs an authorized local account first, so exposure is mainly on shared or multi-user systems. unknown whether a specific Windows version is named in the sources.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":["usbdriver","windowsusbdriver"],"ptokens":["driver","usb","windows"],"labels":["endpoints","high","infrastructure","vendor","windows"],"campaign_type":null,"search_a":"'-2026':16A,19A '-96051':17A,20A 'bound':7A 'cve':15A,18A 'driver':3A,23A 'gain':13A 'let':9A 'local':11A 'out-of-bound':4A 'privileg':14A 'read':8A 'usb':2A,22A 'user':12A 'window':1A 'windows':21A","search_b":"'account':47B 'attack':43B 'buffer':41B 'driver':33B 'end':38B 'endpoint':24B 'flaw':28B 'infrastructur':25B 'local':46B 'machin':57B 'memori':35B 'past':36B 'privileg':54B 'rais':52B 'read':34B 'usb':32B 'use':49B 'window':26B,31B","search_c":"'allow':67C 'attack':70C 'author':69C 'bound':61C 'driver':66C 'elev':72C 'local':74C 'out-of-bound':58C 'privileg':73C 'read':62C 'usb':65C 'window':64C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:22:02+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-96051","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-96051","severity":null,"published_at":"2026-11-10T19:22:02+00:00","modified_at":"2026-11-10T19:22:02+00:00","first_seen_at":"2026-11-10T19:25:28+00:00","fetched_at":"2026-11-10T19:25:28+00:00","note":null},{"source":"analyst","external_id":"CVE-2026-96051:2594","url":"https://api.msrc.microsoft.com/cvrf/v3.0/updates/CVE-2026-96051","severity":null,"published_at":"2026-11-10T20:02:31+00:00","modified_at":"2026-11-10T20:02:31+00:00","first_seen_at":"2026-11-10T20:02:31+00:00","fetched_at":"2026-11-10T20:02:31+00:00","note":"MSRC API confirms CVE-2026-96051 ships in the November 2026 Security Updates (released 2026-11-10). The Update Guide page is JS-only and the CVRF document returned nothing, so affected builds and KB numbers are not read. Nothing verified. Next step: open the Update Guide entry in a browser or read the 2026-Nov CVRF for builds and KBs.","cites":["https://api.msrc.microsoft.com/cvrf/v3.0/updates/CVE-2026-96051"]}],"documents":[{"id":117744,"url":"https://api.msrc.microsoft.com/cvrf/v3.0/updates/CVE-2026-96051","title":"MSRC CVRF update index for CVE-2026-96051 (November 2026 Security Updates)","kind":"advisory","source":"analyst","publisher":null,"text":"MSRC API lists CVE-2026-96051 under the 2026-Nov release (November 2026 Security Updates), initial release 2026-11-10T08:00:00Z. No affected builds or KB numbers in this index entry.","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"}