# CVE-2026-61887: Intel TDX Migration Trust Domain auth bypass in SPDM rebind

Source: https://junglewise.ai/threats/cve-2026-61887-missing-critical-step-in-authentication-in-the-migtd-spdm-rebind  
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-2026-61887 · Severity: info · Published 2026-11-10

Intel TDX Migration Trust Domain (MigTD) is a hypervisor component for secure virtual machine migration in trusted execution environments. A missing authentication step in the SPDM rebind implementation could allow an attacker on the network or local system to escalate privileges, disclose sensitive information, or execute code remotely without requiring legitimate access credentials.

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-2026-61887 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-61887 being exploited in the wild.

**How severe is CVE-2026-61887?** Informational severity, published 10 November 2026.

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

**Is there a fix for CVE-2026-61887?** 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-2026-61887 attacked?** It is attacked over the network or from the adjacent network, in device firmware.

**Am I affected by CVE-2026-61887?** 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 exists in the SPDM (Security Protocol and Data Model) rebind implementation within MigTD's Ring 0 hypervisor code, where a critical authentication check is omitted. An unauthenticated network or adjacent attacker can exploit this with low complexity to achieve privilege escalation, information disclosure, and potentially remote code execution. The advisory indicates high impact on confidentiality, integrity, and availability of the system.

## 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)