PT-2025-47379 · Grub+3 · Grub+3
Published
2025-11-18
·
Updated
2026-03-19
·
CVE-2025-61661
CVSS v3.1
4.8
Medium
| Vector | AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H |
Name of the Vulnerable Software and Affected Versions
GRUB (affected versions not specified)
Description
A flaw exists in the GRUB bootloader due to improper handling of string conversion when processing information from a USB device. Specifically, the bootloader is susceptible to inconsistent length values. A local attacker can connect a specially crafted USB device during the boot process to exploit this issue. Successful exploitation can cause GRUB to crash, resulting in a Denial of Service. Data corruption is a potential, though complex, outcome.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
DoS
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Grub
Red Os
Suse