Bug 2570138 (CVE-2026-62275)

Summary: CVE-2026-62275 migtd: MigTD: Privilege escalation via unhandled error condition in vmcall_raw transport
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Intel Trust Domain Extensions Migration Trust Domain (MigTD). The vmcall_raw transport mechanism detects error conditions but fails to take appropriate corrective action. A local privileged attacker, such as hypervisor-level system software, can exploit this flaw to escalate privileges and cause data corruption.
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Description OSIDB Bzimport 2026-11-10 19:38:43 UTC 
Detection of error condition without action in the MigTD's vmcall_raw transport for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow an escalation of privilege. System software adversary with a privileged user combined with a low complexity attack may enable data corruption. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.