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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.

PUBLISHED Reserved 2025-09-29 | Published 2025-11-18 | Updated 2025-11-19 | Assigner redhat




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

Problem types

Expired Pointer Dereference

Product status

Default status
affected

Default status
affected

Default status
affected

Default status
affected

Default status
affected

Timeline

2025-11-12:Reported to Red Hat.
2025-11-18:Made public.

References

access.redhat.com/security/cve/CVE-2025-61664 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2414685 (RHBZ#2414685) issue-tracking

cve.org (CVE-2025-61664)

nvd.nist.gov (CVE-2025-61664)

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