Riskcovery

CVE-2025-61664

Grub2: missing unregister call for normal_exit command may lead to use-after-free

State
Published
Severity
4.9 Medium
Published
Nov 18, 2025
Updated
Sep 1, 2026
Reserved
Sep 29, 2025

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.14.9 MediumCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:Lredhat

Weaknesses

  • CWE-825 Expired Pointer Dereference

Affected Products

ProductVersions
grub2GNU
  • 2.14 and earlierAffected
Red Hat Enterprise Linux 10Red Hat
    Red Hat Enterprise Linux 7Red Hat
      Red Hat Enterprise Linux 8Red Hat
        Red Hat Enterprise Linux 9Red Hat
          Red Hat OpenShift Container Platform 4Red Hat
            Red Hat OpenShift Container Platform 4Red Hat

              References

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