PT-2025-47381
CVE-2025-61663
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Published
2025-11-18
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Updated
2026-09-01
Description by
CVSS 3.1
4.9
MediumMetricsAV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Name of the Vulnerable Software and Affected Versions
GRUB2 Bootloader (affected versions not specified)
Description
A Use-after-Free issue exists in the GRUB2 bootloader’s normal command. The flaw occurs because the normal command is not properly unregistered when the module is unloaded. An attacker executing this command can cause the system to access invalid memory locations, leading to system instability and a potential Denial of Service (DoS). This could result in a complete system crash and halt system availability. The potential impact on data integrity and confidentiality is also considered possible.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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