# CVE-2026-59771: Intel TDX Migration Trust Domain virtio-serial array index validation denial of service

Source: https://junglewise.ai/threats/cve-2026-59771-improper-validation-of-array-index-in-the-migtd-s-virtio-serial  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-59771 · Severity: info · Published 2026-11-10

Intel's TDX Migration Trust Domain (MigTD) is a security component that manages virtual machine migration in trusted execution environments. An improper validation of array indexes in the virtio-serial driver allows a privileged attacker to cause a denial of service, disrupting system availability without gaining data access.

Technologies: [Intel TDX Migration Trust Domain (MigTD)](https://junglewise.ai/threats/technologies/tdx-migration-trust-domain-migtd). Vendors: [Intel](https://junglewise.ai/threats/vendors/intel).

## Quick answers

**Is CVE-2026-59771 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-59771 being exploited in the wild.

**How severe is CVE-2026-59771?** Informational severity, published 10 November 2026.

**Which products and versions are affected?** Intel TDX Migration Trust Domain (MigTD).

**Is there a fix for CVE-2026-59771?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-59771 attacked?** It is attacked with local access, in device firmware.

**Am I affected by CVE-2026-59771?** Check whether you run Intel TDX Migration Trust Domain (MigTD). Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an improper array index validation flaw in the MigTD's virtio-serial driver operating in Ring 0 (hypervisor privilege level). A system software adversary with privileged user access can trigger a denial of service via local attack without user interaction. The impact is limited to availability; confidentiality and integrity are not affected.

## Affected products

- Intel TDX Migration Trust Domain (MigTD)

## Timeline

- 2026-11-10: disclosed

## References

- [https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01580.html](https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01580.html)

## Related threats

- [Intel TDX Migration Trust Domain improper initialization in virtio-vsock](https://junglewise.ai/threats/cve-2026-63028-improper-initialization-in-the-migtd-virtio-vsock-stream-handling)
- [Intel TDX Migration Trust Domain hypervisor denial of service](https://junglewise.ai/threats/cve-2026-63027-incorrect-behavior-order-in-the-get-tcb-level-by-svn-for-the)
- [Intel TDX Migration Trust Domain TLS unchecked return value DoS](https://junglewise.ai/threats/cve-2026-62930-unchecked-return-value-in-the-migtd-s-tls-implementation-for-the)
- [Intel TDX Migration Trust Domain expired pointer dereference](https://junglewise.ai/threats/cve-2026-62929-expired-pointer-dereference-in-the-migtd-s-virtio-vsock)
- [Intel TDX Migration Trust Domain multiple vulnerabilities](https://junglewise.ai/threats/cve-2026-62920-unchecked-return-value-in-the-migtd-error-handling-for-the-intel)