CVE-2025-61664
MEDIUMGRUB2 - Use After Free
Title source: llmDescription
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.
Scores
CVSS v3
4.9
EPSS
0.0002
EPSS Percentile
4.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Classification
CWE
CWE-825
Status
draft
Timeline
Published
Nov 18, 2025
Tracked Since
Feb 18, 2026