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Vulnerabilities CVE-2026-20898

CVE-2026-20898

High
Open
TLP:CLEAR

AI Analysis

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Description

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.

Details

CVSS Score
8.5
EPSS Score
0.12%

2th percentile

CVSS Vector
CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
Confidence
90%
Published
Aug 11, 2026
Last Modified
Aug 12, 2026
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