# CVE-2026-61383: Intel TDX Migration Trust Domain buffer size calculation DoS

Source: https://junglewise.ai/threats/cve-2026-61383-incorrect-calculation-of-buffer-size-in-the-migtd-s-servtd-get  
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-2026-61383 · Severity: info · Published 2026-11-10

Intel's TDX Migration Trust Domain (MigTD) is a hypervisor component for securing virtual machine migration in Trusted Execution Environment systems. An incorrect buffer size calculation in the servtd_get_quote function could allow a local attacker with system-level privileges to cause a denial of service, disrupting system availability.

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-2026-61383 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-61383 being exploited in the wild.

**How severe is CVE-2026-61383?** Informational severity, published 10 November 2026.

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

**Is there a fix for CVE-2026-61383?** Yes: fixed in Reference software updates available; specific version numbers not provided in advisory. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-61383 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-61383?** 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.

## How to fix

- Fixed in Reference software updates available; specific version numbers not provided in advisory

## Technical details

The vulnerability involves an incorrect calculation of buffer size in MigTD's servtd_get_quote function operating within Ring 0 of the hypervisor. A system software adversary with high-complexity attack requirements and unauthenticated user status can exploit this via local access to trigger a denial of service condition. The fix is available in reference software updates from Intel.

## 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)