CVE-2025-4275

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

A vulnerability in the digital signature verification process does not properly validate variable attributes which allows an attacker to bypass signature verification by creating a non-authenticated NVRAM variable. An attacker may to execute arbitrary signed UEFI code and bypass Secure Boot.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected software

No affected versions have been published.

Timeline

Published: Jun 11, 2025
Last modified: Jun 17, 2026
NVD status: Deferred

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