Intel Slim Bootloader UEFI Firmware Privilege Escalation Vulnerability

Vulnerability

A vulnerability in the UEFI firmware for Intel Slim Bootloader may allow unauthorized privilege escalation. This issue arises from a failure in the protection mechanism, potentially enabling an adversary with access to startup code and System Management Mode (SMM) to escalate privileges. The vulnerability could be exploited through local access, without special internal knowledge, and requires no user interaction. Affected systems may experience high impacts on confidentiality, integrity, and availability.

Impact

Exploitation of this vulnerability could lead to unauthorized privilege escalation, allowing a user to gain elevated rights or access within the system.

Remediation

Users are advised to update Intel Slim Bootloader to version 1.0 or later. Instructions for updating can be found on the Intel Security Center website.

Added: Nov 11, 2025, 8:13 PM
Updated: Nov 11, 2025, 8:13 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
7.5
exploitability
2.4
remediation
7.7
relevance
1.0
threat
0.0
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.