VDB
DEBIAN-CVE-2025-61661
DEBIAN-CVE-2025-61661
PUBLISHED
CVSS 4.800000190734863 MEDIUM
A vulnerability has been identified in the GRUB (Grand Unified Bootloader) component. This flaw occurs because the bootloader mishandles string conversion when reading information from a USB device, allowing an attacker to exploit inconsistent length values. A local attacker can connect a maliciously configured USB device during the boot sequence to trigger this issue. A successful exploitation may lead GRUB to crash, leading to a Denial of Service. Data corruption may be also possible, although given the complexity of the exploit the impact is most likely limited.
Risk Scores
CVSS 3.1
4.800000190734863
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | grub2 | 2.16-1, 2.12~rc1-1, 2.12~rc1-10 |
| Debian:14 | grub2 | 2.12-9, 2.12-9+hurd.1, 2.14~git20250718.0e36779-1 |
| Debian:13 | grub2 | 2.14-2, 2.14-3, 2.14-4 |
Timeline
- Nov 18, 2025 CVE Published
- Oct 23, 2026 CVE Updated