CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HCVE-2025-4275
High (7.8). EPSS 0.5% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced