Intel TDX MigTD: Escalation of privilege via vmcall_raw transport
Summary
A detection of an error condition without action in the MigTD vmcall_raw transport of Intel TDX Migration Trust Domain (MigTD) may allow a privileged local attacker to corrupt data and potentially escalate privileges from the hypervisor context. The attack requires local access, a privileged user and attack requirements being present, and no user interaction. The CNA rates the impact on integrity as high, with no confidentiality or availability impact on the vulnerable system.
Affected
- Intel(R) TDX Migration Trust Domain (MigTD); exact affected versions unknown.
Fixed in
Unknown.
Workaround
- No vendor mitigation known.
- Check whether TDX confidential VMs are configured for live migration.
- Limit administrative access on the hypervisor and host platform.
Exploitation
- Not known to be exploited.
- Not listed in CISA KEV as far as determined.
- No public proof of concept found.
Our recommendation
- Confirm with your hosting or cloud provider whether TDX live migration with MigTD is in use.
- If it is in use, apply Intel's reference software update from advisory INTEL-SA-01580 once you can verify the fixed version.
- Limit privileged access on hypervisor and host systems.
- Review other MigTD advisories published the same day together with this one.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Intel SA-01580 advisory intel.com
- CVE record CVE-2026-62275 at Strix www.strix.ai
- Offseq threat record radar.offseq.com
- Intel security center www.intel.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 16:04.
Original description (NVD)
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.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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