{"id":"CVE-2026-63028","kind":"vulnerability","aliases":["CVE-2026-63028"],"related":[],"title":"Intel TDX MigTD: uninitialized virtio-vsock handling allows denial of service and corruption","description":"Improper initialization in the MigTD virtio-vsock stream handling 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":"Intel's TDX Migration Trust Domain (MigTD) mishandles virtio-vsock stream data because a value is not initialized before use. A local system software adversary can cause a denial of service or corrupt data inside the trust domain.","severity":"medium","cvss":5.1,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","intel-tdx","migtd","virtualization"],"not_affected_if":["no-tdx"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T18:17:45+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: uninitialized virtio-vsock handling allows denial of service and corruption","impact":"low","summary":"Intel's TDX Migration Trust Domain (MigTD) mishandles virtio-vsock stream data because a value is not initialized before use. A local system software adversary can cause a denial of service or corrupt data inside the trust domain.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["intel-tdx","migtd","virtualization"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"Trust domain crashes or inside data gets corrupted by a local adversary","analyst_note":"Check Intel's security advisory for affected MigTD versions and the fixed release; NVD text alone gives no version or fix.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["no-tdx"],"who_is_affected":"Affects Intel TDX deployments that run the MigTD migration trust domain with virtio-vsock stream handling. The sources do not say which MigTD versions are affected or which configurations enable the vsock path. Teams not running Intel TDX live migration can skip it.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"yes","severity_if_unknown":"unknown"},"cost_usd":0.000705,"input_tokens":4674,"output_tokens":476,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':16A,19A '-63028':17A,20A '0':87C 'access':119C 'adversari':52B,97C 'allow':9A,90C 'attack':107C,121C 'avail':146C,161C 'caus':54B 'combin':102C 'complex':106C 'confidenti':141C,156C 'corrupt':14A,60B,111C 'cve':15A,18A 'data':39B,61B,110C 'denial':10A,56B,92C 'domain':32B,65B,83C 'enabl':109C 'handl':8A,75C 'hypervisor':88C 'impact':139C,163C 'improp':66C 'infrastructur':21B 'initi':45B,67C 'insid':62B 'integr':143C,158C 'intel':1A,23B,27B,78C 'intel-tdx':22B 'interact':134C 'intern':128C 'knowledg':129C 'local':49B,118C 'low':105C,144C,147C 'may':89C,108C,114C,138C 'migrat':30B,81C 'migtd':3A,25B,33B,70C,84C 'mishandl':34B 'none':142C,157C,159C,162C 'occur':116C 'potenti':115C,136C 'present':125C 'r':79C 'requir':122C,131C 'result':113C,152C 'ring':86C 'servic':12A,58B,94C 'softwar':51B,96C 'special':127C 'stream':38B,74C 'subsequ':154C 'system':50B,95C,151C,155C 'tdx':2A,24B,29B,80C 'trust':31B,64B,82C 'unauthent':100C 'uniniti':4A 'use':47B 'user':101C,133C 'valu':42B 'via':117C 'virtio':6A,36B,72C 'virtio-vsock':5A,35B,71C 'virtual':26B 'vsock':7A,37B,73C 'vulner':137C,150C 'within':85C 'without':126C","nicknames":[],"mitigations":[],"who_affected":"Affects Intel TDX deployments that run the MigTD migration trust domain with virtio-vsock stream handling. The sources do not say which MigTD versions are affected or which configurations enable the vsock path. Teams not running Intel TDX live migration can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["infrastructure","inteltdx","medium","migtd","virtualization"],"campaign_type":null,"search_a":"'-2026':16A,19A '-63028':17A,20A 'allow':9A 'corrupt':14A 'cve':15A,18A 'denial':10A 'handl':8A 'intel':1A 'migtd':3A 'servic':12A 'tdx':2A 'uniniti':4A 'virtio':6A 'virtio-vsock':5A 'vsock':7A","search_b":"'adversari':52B 'caus':54B 'corrupt':60B 'data':39B,61B 'denial':56B 'domain':32B,65B 'infrastructur':21B 'initi':45B 'insid':62B 'intel':23B,27B 'intel-tdx':22B 'local':49B 'migrat':30B 'migtd':25B,33B 'mishandl':34B 'servic':58B 'softwar':51B 'stream':38B 'system':50B 'tdx':24B,29B 'trust':31B,64B 'use':47B 'valu':42B 'virtio':36B 'virtio-vsock':35B 'virtual':26B 'vsock':37B","search_c":"'0':87C 'access':119C 'adversari':97C 'allow':90C 'attack':107C,121C 'avail':146C,161C 'combin':102C 'complex':106C 'confidenti':141C,156C 'corrupt':111C 'data':110C 'denial':92C 'domain':83C 'enabl':109C 'handl':75C 'hypervisor':88C 'impact':139C,163C 'improp':66C 'initi':67C 'integr':143C,158C 'intel':78C 'interact':134C 'intern':128C 'knowledg':129C 'local':118C 'low':105C,144C,147C 'may':89C,108C,114C,138C 'migrat':81C 'migtd':70C,84C 'none':142C,157C,159C,162C 'occur':116C 'potenti':115C,136C 'present':125C 'r':79C 'requir':122C,131C 'result':113C,152C 'ring':86C 'servic':94C 'softwar':96C 'special':127C 'stream':74C 'subsequ':154C 'system':95C,151C,155C 'tdx':80C 'trust':82C 'unauthent':100C 'user':101C,133C 'via':117C 'virtio':72C 'virtio-vsock':71C 'vsock':73C 'vulner':137C,150C 'within':85C 'without':126C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T18:17:45+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-2026-63028","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63028","severity":null,"published_at":"2026-11-10T18:17:45+00:00","modified_at":"2026-11-10T18:17:45+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"}