{"id":"CVE-2026-57892","kind":"vulnerability","aliases":["CVE-2026-57892"],"related":[],"title":"Intel TDX MigTD: weak access control lets an attacker escalate privilege","description":"Insufficient granularity of access control in the MigTD v2 policy evaluation engine for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow an escalation of privilege. Network adversary with an unauthenticated user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via adjacent access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (none) impacts.","summary":"The MigTD v2 policy evaluation engine in Intel's TDX Migration Trust Domain does not restrict access finely enough, so a flaw in the hypervisor can allow privilege escalation. An attacker on an adjacent network with no credentials could read and modify confidential data of the affected system.","severity":"high","cvss":8.8,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"MigTD","fixed":["0.7.2"],"affected":"< 0.7.2","ecosystem":"vendor"}],"ecosystems":[],"tags":["confidential-computing","hypervisor","infrastructure","intel-tdx","migtd"],"not_affected_if":[],"how_to_check":"Check the MigTD reference software version your TDX platform or cloud image uses. Any version before 0.7.2 is affected. Ask your platform or cloud vendor which MigTD build they ship.","fix":"Update Intel TDX Migration Trust Domain (MigTD) to version 0.7.2 or later (https://github.com/intel/MigTD/releases/tag/v0.7.2).","status":"open","published_at":"2026-11-10T18:17:42+00:00","first_seen_at":"2026-11-10T18:22:59+00:00","triaged_at":"2026-11-10T18:24:14+00:00","updated_at":"2026-11-10T18:25:00+00:00","category":"infrastructure","confidence":0.8,"triage":{"at":"2026-11-10T18:24:14Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Intel TDX MigTD: weak access control lets an attacker escalate privilege","impact":"high","summary":"The MigTD v2 policy evaluation engine in Intel's TDX Migration Trust Domain does not restrict access finely enough, so a flaw in the hypervisor can allow privilege escalation. An attacker on an adjacent network with no credentials could read and modify confidential data of the affected system.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["intel-tdx","migtd","confidential-computing","hypervisor"],"confidence":0.5,"fix_status":"unknown","needs_auth":"no","worst_case":"attacker escalates privilege and reads or modifies confidential data","analyst_note":"Check the Intel security advisory and NVD entry for affected MigTD v2 versions, fixed firmware or module versions, and whether the flaw requires a non-default migration setup.","how_to_check":"- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000679,"input_tokens":4686,"output_tokens":421,"severity_before":"high"},"analyst_status":"done","analyst_note":"Check the Intel security advisory and NVD entry for affected MigTD v2 versions, fixed firmware or module versions, and whether the flaw requires a non-default migration setup.","search":"'-2026':13A,16A '-57892':14A,17A '0':99C 'access':5A,44B,79C,131C 'adjac':61B,130C 'adversari':108C 'affect':74B 'allow':54B,102C 'attack':9A,58B,118C,133C 'avail':158C,173C 'combin':113C 'complex':117C 'comput':21B 'confidenti':20B,70B,153C,168C 'confidential-comput':19B 'control':6A,80C 'could':66B 'credenti':65B 'cve':12A,15A 'data':71B 'domain':40B,95C 'enabl':120C 'engin':33B,87C 'enough':46B 'escal':10A,56B,104C,121C 'evalu':32B,86C 'fine':45B 'flaw':49B 'granular':77C 'high':116C,154C,156C,169C,171C 'hypervisor':22B,52B,100C 'impact':151C,175C 'infrastructur':23B 'insuffici':76C 'integr':155C,170C 'intel':1A,25B,35B,90C 'intel-tdx':24B 'interact':146C 'intern':140C 'knowledg':141C 'let':7A 'may':101C,119C,126C,150C 'migrat':38B,93C 'migtd':3A,18A,27B,29B,83C,96C 'modifi':69B 'network':62B,107C 'none':159C,174C 'occur':128C 'polici':31B,85C 'potenti':127C,148C 'present':137C 'privileg':11A,55B,106C,123C 'r':91C 'read':67B 'requir':134C,143C 'restrict':43B 'result':125C,164C 'ring':98C 'special':139C 'subsequ':166C 'system':75B,163C,167C 'tdx':2A,26B,37B,92C 'trust':39B,94C 'unauthent':111C 'user':112C,145C 'v2':30B,84C 'via':129C 'vulner':149C,162C 'weak':4A 'within':97C 'without':138C","nicknames":[],"mitigations":[],"who_affected":"Affects operators of Intel TDX confidential-computing hosts that use the MigTD reference software (live migration of trust domains), all versions before 0.7.2. The attacker needs adjacent network access and a high-complexity attack, but no credentials. Most application teams only inherit this through a cloud or hardware vendor; if you do not use TDX live migration you can skip it.","tier":"B","verified":{"fix":{"at":"2026-11-10T18:25:00Z","by":"analyst","doc":"https://github.com/intel/MigTD/releases/tag/v0.7.2","run_id":2487},"products":{"at":"2026-11-10T18:25:00Z","by":"analyst","doc":"https://github.com/intel/MigTD/releases/tag/v0.7.2","run_id":2487},"who_affected":{"at":"2026-11-10T18:25:00Z","by":"analyst","doc":"https://github.com/intel/MigTD/releases/tag/v0.7.2","run_id":2487}},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":["migtd"],"ptokens":["migtd"],"labels":["confidentialcomputing","high","hypervisor","infrastructure","inteltdx","migtd"],"campaign_type":null,"search_a":"'-2026':13A,16A '-57892':14A,17A 'access':5A 'attack':9A 'control':6A 'cve':12A,15A 'escal':10A 'intel':1A 'let':7A 'migtd':3A,18A 'privileg':11A 'tdx':2A 'weak':4A","search_b":"'access':44B 'adjac':61B 'affect':74B 'allow':54B 'attack':58B 'comput':21B 'confidenti':20B,70B 'confidential-comput':19B 'could':66B 'credenti':65B 'data':71B 'domain':40B 'engin':33B 'enough':46B 'escal':56B 'evalu':32B 'fine':45B 'flaw':49B 'hypervisor':22B,52B 'infrastructur':23B 'intel':25B,35B 'intel-tdx':24B 'migrat':38B 'migtd':27B,29B 'modifi':69B 'network':62B 'polici':31B 'privileg':55B 'read':67B 'restrict':43B 'system':75B 'tdx':26B,37B 'trust':39B 'v2':30B","search_c":"'0':99C 'access':79C,131C 'adjac':130C 'adversari':108C 'allow':102C 'attack':118C,133C 'avail':158C,173C 'combin':113C 'complex':117C 'confidenti':153C,168C 'control':80C 'domain':95C 'enabl':120C 'engin':87C 'escal':104C,121C 'evalu':86C 'granular':77C 'high':116C,154C,156C,169C,171C 'hypervisor':100C 'impact':151C,175C 'insuffici':76C 'integr':155C,170C 'intel':90C 'interact':146C 'intern':140C 'knowledg':141C 'may':101C,119C,126C,150C 'migrat':93C 'migtd':83C,96C 'network':107C 'none':159C,174C 'occur':128C 'polici':85C 'potenti':127C,148C 'present':137C 'privileg':106C,123C 'r':91C 'requir':134C,143C 'result':125C,164C 'ring':98C 'special':139C 'subsequ':166C 'system':163C,167C 'tdx':92C 'trust':94C 'unauthent':111C 'user':112C,145C 'v2':84C 'via':129C 'vulner':149C,162C 'within':97C 'without':138C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T18:17:42+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/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-2026-57892","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57892","severity":null,"published_at":"2026-11-10T18:17:42+00:00","modified_at":"2026-11-10T18:17:42+00:00","first_seen_at":"2026-11-10T18:22:59+00:00","fetched_at":"2026-11-10T18:22:59+00:00","note":null},{"source":"analyst","external_id":"CVE-2026-57892:2487","url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01580.html","severity":null,"published_at":"2026-11-10T18:25:00+00:00","modified_at":"2026-11-10T18:25:00+00:00","first_seen_at":"2026-11-10T18:25:00+00:00","fetched_at":"2026-11-10T18:25:00+00:00","note":"Intel INTEL-SA-01580 (11/10/2026, rated Medium overall; this CVE scored CVSS 4.0 8.8 High): all MigTD reference software before 0.7.2 affected, fixed in 0.7.2. No workarounds listed. Found internally, no exploitation or PoC seen. Advisory read via page summarizer, release page not read.","cites":["https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01580.html","https://github.com/intel/MigTD/releases/tag/v0.7.2"]}],"documents":[{"id":117041,"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01580.html","title":"INTEL-SA-01580 Intel TDX Migration Trust Domain (MigTD) Advisory","kind":"advisory","source":"analyst","publisher":null,"text":null,"published_at":null,"relation":"advisory","confidence":null,"note":null},{"id":117043,"url":"https://github.com/intel/MigTD/releases/tag/v0.7.2","title":"intel/MigTD v0.7.2","kind":"release","source":"analyst","publisher":null,"text":null,"published_at":null,"relation":"fix","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"}