Quick answers
- Is CVE-2026-56759 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-56759 being exploited in the wild.
- How severe is CVE-2026-56759?
- Informational severity, published 10 November 2026.
- Which products and versions are affected?
- Intel TDX Migration Trust Domain (MigTD).
- Is there a fix for CVE-2026-56759?
- 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-2026-56759 attacked?
- It is attacked with local access, in device firmware.
- Am I affected by CVE-2026-56759?
- 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 MigTD Ring 0 hypervisor code and involves improper input validation of PCI BAR configuration. A system software adversary with privileged user access can exploit this via local access with low attack complexity to cause data corruption and potential privilege escalation. The advisory describes a medium-severity issue affecting system integrity.
Affected products
- Intel TDX Migration Trust Domain (MigTD)
Timeline
- 2026-11-10: disclosed