CVE-2025-61664

4.9 MEDIUM

A vulnerability in the GRUB2 bootloader has been identified in the normal module

Published: 2025-11-18 · Last updated: 2026-05-19

Severity and scoring

CVSS: 4.9 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE: CWE-825

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.

Source: NVD

References

Related CVEs

Same CWE

CVE-2026-8854 — IBM HTTP Server 8.5, and 9.0 is vulnerable to denial of service via the optional module mod_mem_cache (7.5 HIGH)
CVE-2026-34001 — A flaw was found in the X.Org X server (7.8 HIGH)
CVE-2025-54771 — A use-after-free vulnerability has been identified in the GNU GRUB (Grand Unified Bootloader) (4.9 MEDIUM)
CVE-2025-54770 — A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service (DoS) risk (4.9 MEDIUM)
CVE-2025-49795 — A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions (7.5 HIGH)