CVE-2025-61664

MEDIUM EPSS 2.3%

Published Nov 18, 20257mo ago · Modified Jun 17, 20262w ago

4.9 CVSS 3.1

Medium

Published Nov 18, 2025 7mo ago

Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score

4.9

Exploitability

1.4

Impact

3.4

Vector string

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector Local

Attack Complexity High

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality Low

Integrity Low

Availability Low

Threat Intelligence

EPSS Exploit Probability

2.3% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-825

References 3

access.redhat.com https://access.redhat.com/security/cve/CVE-2025-61664
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2414685
lists.gnu.org https://lists.gnu.org/archive/html/grub-devel/2025-11/msg00155.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.