# CVE-2026-57892: Intel TDX Migration Trust Domain policy evaluation access control

Source: https://junglewise.ai/threats/cve-2026-57892-insufficient-granularity-of-access-control-in-the-migtd-v2-policy  
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-2026-57892 · Severity: info · Published 2026-11-10

Intel's TDX Migration Trust Domain (MigTD) is a hypervisor-level security component for Intel processors. Insufficient access control in the policy evaluation engine allows an adjacent network adversary to escalate privileges and disclose sensitive system data. An attacker could gain complete control of the hypervisor and access confidential information from virtual machines.

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-2026-57892 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-57892 being exploited in the wild.

**How severe is CVE-2026-57892?** Informational severity, published 10 November 2026.

**Which products and versions are affected?** Intel TDX Migration Trust Domain (MigTD) v2.

**Is there a fix for CVE-2026-57892?** 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-2026-57892 attacked?** It is attacked from the adjacent network or over the network, in device firmware.

**Am I affected by CVE-2026-57892?** Check whether you run Intel TDX Migration Trust Domain (MigTD) at an affected version. 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

Insufficient granularity of access control in the MigTD v2 policy evaluation engine (Ring 0) allows privilege escalation via adjacent network access without authentication. The vulnerability impacts confidentiality and integrity of the hypervisor and guest virtual machines, requiring no user interaction or special knowledge.

## Affected products

- Intel TDX Migration Trust Domain (MigTD) v2

## 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)