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

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). 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

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