Intel TDX MigTD: Missing memory release in virtio-serial driver enables denial of service
Summary
The virtio-serial driver of the Intel TDX Migration Trust Domain (MigTD) does not release memory after its effective lifetime (CWE-401). A privileged local attacker in a system software role can exhaust memory and cause a denial of service in the affected component. No confidentiality or integrity impact is documented, and no user interaction is required.
Affected
- Intel TDX Migration Trust Domain (MigTD)
- Specific affected versions: Unknown. Consult Intel advisory INTEL-SA-01580.
Fixed in
Unknown. No fixed version has been published in the sources reviewed.
Workaround
Unknown. No vendor-documented workaround was found.
Exploitation
- Not known to be exploited; not listed in CISA KEV.
- EPSS below 1% (very low).
- No public proof of concept found in the sources reviewed (as of 10-11 November 2026).
Our recommendation
- Priority: low. This CVE requires local access with high privileges and is not internet-exposed.
- Check whether any hosting provider or hardware in your environment uses Intel TDX and MigTD.
- Monitor Intel advisory INTEL-SA-01580 and apply vendor firmware or software updates in the normal cycle once published.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Intel advisory INTEL-SA-01580 intel.com
- OpenCVE CVE-2026-60020 app.opencve.io
- OffSeq threat radar radar.offseq.com
- Strix CVE-2026-60020 www.strix.ai
- Intel product 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, 21:07.
Original description (NVD)
Missing release of memory after effective lifetime in the MigTD virtio-serial driver for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow a denial of service. System software adversary with a privileged user combined with a low complexity attack may enable denial of service. 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 (none) 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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