CVE-2025-61664
Deferred Deferred - Pending Action
BaseFortify

Publication date: 2025-11-18

Last updated on: 2026-05-19

Assigner: Red Hat, Inc.

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.
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Meta Information
Published
2025-11-18
Last Modified
2026-05-19
Generated
2026-06-16
AI Q&A
2025-11-18
EPSS Evaluated
2026-06-15
NVD
CVE-2025-61664
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
gnu grub 2.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-825 The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.
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Executive Summary

This vulnerability is a Use After Free flaw in the GRUB2 bootloader's normal module. It happens because the normal_exit command is not properly unregistered when its module is unloaded. An attacker can exploit this by invoking the command after the module is removed, causing the system to access memory that has already been freed, which can lead to a system crash or compromise data confidentiality and integrity.

Impact Analysis

Exploiting this vulnerability can cause the system to crash or potentially lead to unauthorized access or modification of data, impacting both data confidentiality and integrity.

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