CVE-2025-61664

Public on 2025-11-18
Modified on 2025-11-18
Description
A vulnerability in the GRUB2 bootloader has been identified in the normal module. This flaw, a memory Use After Free issue, occurs because the normal_exit command is not properly unregistered when its related module is unloaded. An attacker can exploit this condition by invoking the command after the module has been removed, causing the system to improperly access a previously freed memory location. This leads to a system crash or possible impacts in data confidentiality and integrity.
Severity
Medium severity
Medium
See what this means
CVSS v3 Base Score
4.9
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core grub2 Pending Fix
Amazon Linux 2023 grub2 Pending Fix

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L