🛡️ CVE-2025-61663
🟡 CVSS 4.9 — Medium ✅ No Known Exploit CWE-825 NVD
4.9
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A vulnerability has been identified in the GRUB2 bootloader's normal command that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the normal command is not properly unregistered when the module is unloaded. An attacker who can execute this command can force the system to access memory locations that are no longer valid. Successful exploitation leads directly to system instability, which can result in a complete crash and halt system availability. Impact on the data integrity and confidentiality is also not discarded.

Details

Severity MEDIUM
CVSS Score 4.9
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE CWE-825
Public Exploit ✅ No
Source NVD
Published 2025-11-18
Updated 2026-06-02
Modified 2026-04-15
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

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