Intel MigTD: Missing authentication step in SPDM rebind
Summary
The SPDM rebind implementation of the Intel TDX Migration Trust Domain (MigTD) lacks a required authentication step (CWE-304). According to the CVE record, an unauthenticated attacker with network or adjacent access could potentially escalate privileges, disclose information or execute code, with a CVSS 4.0 score of 9.4. The record is new and not yet analyzed, and the linked Intel advisory does not list this CVE in the excerpt reviewed, so the score and attack vector are unverified.
Affected
Unknown. The CVE record names the Intel TDX Migration Trust Domain (MigTD) but gives no version ranges.
Fixed in
Unknown.
Workaround
Unknown.
- Restricting migration and rebinding traffic to trusted management networks is a general precaution, not a vendor recommendation.
Exploitation
No exploitation known at the time of writing. No public proof of concept found.
Our recommendation
- Check whether any hosts run Intel TDX with MigTD, for example by asking your hosting provider or server vendor.
- If no TDX hosts are used, classify this as low priority and keep it on watch.
- If TDX is used, apply the vendor firmware and TDX module updates once Intel publishes affected and fixed versions, and restrict migration traffic to trusted networks in the meantime.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Intel SA-01580: Intel TDX Migration Trust Domain (MigTD) Advisory intel.com
- intel/MigTD releases github.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 10 Nov 2026, 19:21.
Original description (NVD)
Missing critical step in authentication in the MigTD SPDM rebind implementation for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow an escalation of privilege and information disclosure. Network adversary with an unauthenticated user combined with a low complexity attack may enable remote code execution. 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 (high) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (high) 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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