{"id":"CVE-2026-61469","kind":"vulnerability","aliases":["CVE-2026-61469"],"related":[],"title":"Intel TDX MigTD: off-by-one in vmcall_raw lets local attacker corrupt data","description":"Off-by-one error in the MigTD's vmcall_raw transport for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow a denial of service. System software adversary with an unauthenticated user combined with a low complexity attack may enable data corruption. This result may potentially occur via local 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 (low) and availability (low) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.","summary":"An off-by-one error in the vmcall_raw transport of Intel's TDX Migration Trust Domain (MigTD) can be triggered from Ring 0 by a system software adversary. The flaw may allow denial of service and data corruption inside the trust domain.","severity":"medium","cvss":5.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["confidential-computing","hypervisor","infrastructure","intel-tdx","migtd"],"not_affected_if":["no-tdx"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T18:17:44+00:00","first_seen_at":"2026-11-10T18:23:00+00:00","triaged_at":"2026-11-10T18:26:23+00:00","updated_at":"2026-11-10T18:26:23+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T18:26:23Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Intel TDX MigTD: off-by-one in vmcall_raw lets local attacker corrupt data","impact":"medium","summary":"An off-by-one error in the vmcall_raw transport of Intel's TDX Migration Trust Domain (MigTD) can be triggered from Ring 0 by a system software adversary. The flaw may allow denial of service and data corruption inside the trust domain.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["intel-tdx","migtd","confidential-computing","hypervisor"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"Denial of service and data corruption inside the migration trust domain","analyst_note":"Find Intel's advisory for CVE-2026-61469 to get affected MigTD versions, the fixed release and any check for TDX deployments.","how_to_check":"unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["no-tdx"],"who_is_affected":"Affects Intel TDX deployments that use the MigTD migration trust domain on Intel hardware. The sources do not name the affected versions or the configurations that expose it. Teams that do not run TDX live migration can likely skip it.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.00071,"input_tokens":4684,"output_tokens":484,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':17A,20A '-61469':18A,21A '0':55B,98C 'access':130C 'adversari':60B,108C 'allow':64B,101C 'attack':13A,118C,132C 'avail':157C,172C 'combin':113C 'complex':117C 'comput':24B 'confidenti':23B,152C,167C 'confidential-comput':22B 'corrupt':14A,70B,122C 'cve':16A,19A 'data':15A,69B,121C 'denial':65B,103C 'domain':48B,74B,94C 'enabl':120C 'error':36B,79C 'flaw':62B 'hypervisor':25B,99C 'impact':150C,174C 'infrastructur':26B 'insid':71B 'integr':154C,169C 'intel':1A,28B,43B,89C 'intel-tdx':27B 'interact':145C 'intern':139C 'knowledg':140C 'let':11A 'local':12A,129C 'low':116C,155C,158C 'may':63B,100C,119C,125C,149C 'migrat':46B,92C 'migtd':3A,30B,49B,82C,95C 'none':153C,168C,170C,173C 'occur':127C 'off-by-on':4A,32B,75C 'one':7A,35B,78C 'potenti':126C,147C 'present':136C 'r':90C 'raw':10A,40B,85C 'requir':133C,142C 'result':124C,163C 'ring':54B,97C 'servic':67B,105C 'softwar':59B,107C 'special':138C 'subsequ':165C 'system':58B,106C,162C,166C 'tdx':2A,29B,45B,91C 'transport':41B,86C 'trigger':52B 'trust':47B,73B,93C 'unauthent':111C 'user':112C,144C 'via':128C 'vmcall':9A,39B,84C 'vulner':148C,161C 'within':96C 'without':137C","nicknames":[],"mitigations":[],"who_affected":"Affects Intel TDX deployments that use the MigTD migration trust domain on Intel hardware. The sources do not name the affected versions or the configurations that expose it. Teams that do not run TDX live migration can likely skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["confidentialcomputing","hypervisor","infrastructure","inteltdx","medium","migtd"],"campaign_type":null,"search_a":"'-2026':17A,20A '-61469':18A,21A 'attack':13A 'corrupt':14A 'cve':16A,19A 'data':15A 'intel':1A 'let':11A 'local':12A 'migtd':3A 'off-by-on':4A 'one':7A 'raw':10A 'tdx':2A 'vmcall':9A","search_b":"'0':55B 'adversari':60B 'allow':64B 'comput':24B 'confidenti':23B 'confidential-comput':22B 'corrupt':70B 'data':69B 'denial':65B 'domain':48B,74B 'error':36B 'flaw':62B 'hypervisor':25B 'infrastructur':26B 'insid':71B 'intel':28B,43B 'intel-tdx':27B 'may':63B 'migrat':46B 'migtd':30B,49B 'off-by-on':32B 'one':35B 'raw':40B 'ring':54B 'servic':67B 'softwar':59B 'system':58B 'tdx':29B,45B 'transport':41B 'trigger':52B 'trust':47B,73B 'vmcall':39B","search_c":"'0':98C 'access':130C 'adversari':108C 'allow':101C 'attack':118C,132C 'avail':157C,172C 'combin':113C 'complex':117C 'confidenti':152C,167C 'corrupt':122C 'data':121C 'denial':103C 'domain':94C 'enabl':120C 'error':79C 'hypervisor':99C 'impact':150C,174C 'integr':154C,169C 'intel':89C 'interact':145C 'intern':139C 'knowledg':140C 'local':129C 'low':116C,155C,158C 'may':100C,119C,125C,149C 'migrat':92C 'migtd':82C,95C 'none':153C,168C,170C,173C 'occur':127C 'off-by-on':75C 'one':78C 'potenti':126C,147C 'present':136C 'r':90C 'raw':85C 'requir':133C,142C 'result':124C,163C 'ring':97C 'servic':105C 'softwar':107C 'special':138C 'subsequ':165C 'system':106C,162C,166C 'tdx':91C 'transport':86C 'trust':93C 'unauthent':111C 'user':112C,144C 'via':128C 'vmcall':84C 'vulner':148C,161C 'within':96C 'without':137C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T18:17:44+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/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-2026-61469","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61469","severity":null,"published_at":"2026-11-10T18:17:44+00:00","modified_at":"2026-11-10T18:17:44+00:00","first_seen_at":"2026-11-10T18:23:00+00:00","fetched_at":"2026-11-10T18:23:00+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"}