Intel TDX MigTD: Use after free in virtio driver allows privilege escalation
Summary
The MigTD virtio driver of Intel TDX Migration Trust Domain contains a use-after-free flaw (CWE-416). A local attacker with privileged access on the system software can potentially escalate privileges and corrupt data in the migration component. The attack requires no user interaction and no special internal knowledge, but it is not remotely exploitable.
Affected
- Intel(R) TDX Migration Trust Domain (MigTD)
- Affected versions: Unknown. See Intel advisory INTEL-SA-01580.
Fixed in
Unknown. No fixed version or patch was published in the sources reviewed.
Workaround
- No vendor-specific workaround known.
- Restrict administrative access on TDX hosts and migration infrastructure.
Exploitation
- Not known to be exploited in the wild.
- No public proof of concept found.
Our recommendation
- Check whether any hosting or cloud provider you use runs Intel TDX live migration.
- If you operate TDX migration infrastructure, apply the Intel update once published and review it with the other MigTD CVEs from the same advisory.
- Limit privileged access to hosts and monitor for vendor updates.
- Priority: low for most SMEs.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Intel Security Advisory INTEL-SA-01580 intel.com
- CVE Record CVE-2026-61467 (Strix) www.strix.ai
- OffSeq Radar: CVE-2026-61467 radar.offseq.com
- Intel TDX Migration TD Design Guide cdrdv2-public.intel.com
- Intel TDX Joint Security Review with Microsoft 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, 10:44.
Original description (NVD)
Use after free in the MigTD virtio driver 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 not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (high) and availability (low) 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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