PT-2025-19327 · Intel · Intel Uefi

Published 2025-05-05 · Updated 2025-05-05 · CVE-2025-4273

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Intel UEFI (affected versions not specified)

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. This enables an attacker to execute arbitrary signed UEFI code and bypass Secure Boot.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Related Identifiers

CVE-2025-4273

Affected Products

Intel Uefi

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2025-4273 · Security Note
• https://t.me/cvetracker/23017 · Telegram Post
• https://insyde.com/security-pledge · Note
• https://t.me/cvedetector/24425 · Telegram Post