VULNERABILITY INTELLIGENCE

CVE-2026-20901

CVSS score5.3 MEDIUM
EPSS probability0.10%
CISA KEVNot currently listed
Published2026-08-11
Last modified2026-08-28
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N

Description

Improper input validation for some Intel(R) Xeon(R) processors within firmware may allow an escalation of privilege. Startup code and smm adversary with a privileged user combined with a high complexity attack may enable data alteration. 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 (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (high) and availability (none) impacts.

Weakness classification

  • secure@intel.com: CWE-20

Primary references