CVE-2026-20898

Improper access control in the firmware for some in Alias Checking Trusted Module for some Intel(R) Xeon(R) processors may allow an escalation of privilege. Startup code and SMM 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 not 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 (high), integrity (high) and availability (none) impacts.

Score
CVSS 4.0 8.5 High
Status
Analyzed - secure@intel.com
Published
2026-08-11
Last modified
2026-08-12
Weaknesses
CWE-284

Affected products

References

 
 
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