CVE-2026-44685

CRITICAL
INFO Priority: 0.01 BB Relevance: 39/100
Published: 2026-11-10 Modified: 2026-11-13 First seen: 2026-11-10 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: High
UI: None
AT: None
VC: High
VI: High
VA: High

Description

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.

Affected Software (3)

Bug Bounty Relevance

39 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

9.3 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.16%
Raw Score 0.001590
Percentile 5.1%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00159
2026-11-12
0.00159

Intelligence Sources

mitre ref →
nvd ref →