# CVE-2026-61887: CVE-2026-61887

Status: published. Published: 2026-11-10. Updated: 2026-11-13.

Missing critical step in authentication in the MigTD SPDM rebind implementation for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow an escalation of privilege and information disclosure. Network adversary with an unauthenticated user combined with a low complexity attack may enable remote code execution. This result may potentially occur via adjacent access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (high) impacts.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- n/a / Intel(R) TDX Migration Trust Domain (MigTD): See references (affected). Source: CNA: intel

## Severity and prioritization

- CVSS 4.0: 9.4 (critical); CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H; source: CNA: intel

- CVSS 4.0: 9.4 (critical); CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: secure@intel.com

- CISA KEV: No listing in collected sources

- EPSS: 0.31% as of 2026-11-12; percentile 23.83%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-304

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01580.html (CNA: intel)

- https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01580.html (secure@intel.com)

## Provenance

- CNA: intel: https://www.cve.org/CVERecord?id=CVE-2026-61887; retrieved 2026-11-13; source updated 2026-11-13

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-61887; retrieved 2026-11-13; source updated 2026-11-13

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-61887; retrieved 2026-11-13; source updated Not reported

Revision: bd7c6ee72813fe2aebfc014d1c4305407f1ec658b2c1c73164732b0cde288a49

Canonical: https://y2.dev/cve/CVE-2026-61887

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