CVE-2026-20885 PUBLISHED

Assigner: intel
Reserved: 03.12.2025 Published: 11.08.2026 Updated: 11.08.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
CVSS Score: 7

Product Status

Vendor n/a
Product Intel(R) platforms
Versions Default: unaffected
  • Version See references is affected

References

Problem Types

  • Escalation of Privilege, Information Disclosure
  • Improper Authentication CWE