CVE-2026-20885: Intel Tdx Module

High severity, CVSS 7.2. EPSS: 0.1% chance of exploitation in the next 30 days.

Improper authentication in the Intel(R) TDX module for some Intel(R) platforms within Ring 0: Trust Domain may allow an information disclosure and escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (low), integrity (low) and availability (none) impacts.

Affected products

• Intel Tdx Module: up to and including 1.5.28; up to and including 2.0.16

Published 2026-08-11. Last modified 2026-08-31.