CVE Catalog

CVE-2025-20027

High
Published: Translated: NVD NIST

Summary

Improper input validation in the UEFI WheaERST module for some Intel reference platforms may allow an escalation of privilege. The attack requires a privileged system software adversary and high complexity, but no user interaction or special internal knowledge. The vulnerability may impact confidentiality, integrity, and availability of the system.

Risk Assessment

The risk for the organization includes potential privilege escalation by a local privileged attacker, which could lead to full system compromise (confidentiality, integrity, availability).

Recommendation

It is recommended to immediately apply the UEFI firmware update provided by the platform vendor and restrict local access to systems with the vulnerable module.

Related vulnerabilities

Original NVD description (English source)

Improper input validation in the UEFI WheaERST module for some Intel(R) reference platforms may allow an 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 (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS