What is CVE-2026-44685?
Authentication bypass by spoofing in the MigTD rebinding protocol for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow an escalation of privilege. System software adversary with a privileged user combined with a low complexity attack may enable local code execution. This result may potentially occur via local 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.
The record classifies CVE-2026-44685 under weakness class CWE-290. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 1 day ago.
Severity and exploitation probability
- CVSS v4.0 base score
- 9.3 — Critical (derived from score)
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H - CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 4.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-11-10
Is CVE-2026-44685 being exploited?
It currently carries a trending score of 35 in the Threadlinqs vulnerability feed.
Affected products and versions
- (vendor unspecified): Intel(R) TDX Migration Trust Domain (MigTD)
How to fix CVE-2026-44685
No vendor patch reference has been recorded for CVE-2026-44685 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-44685
1 tracked threat in the Threadlinqs corpus references CVE-2026-44685, either in the campaign’s CVE list or as an indicator on the campaign record.
Sources
Enriched from CVE.org, NVD, GitHub Security Advisories. This product uses the NVD API but is not endorsed or certified by the NVD.