DEBIAN-CVE-2025-61663
Record from OSV · Published November 18, 2025
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 An attacker who can execute this command can force the system to access memory locations that are no longer valid.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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| grub2 | Debian:14 | 2.14-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:13 | grub2 | 0, 2.12-9, 2.12-9+deb13u1 |
| Debian:12 | grub2 | 2.16-1, 2.14-2, 2.14-3 |
| Debian:14 | grub2 | 2.12-9, 2.12-9+hurd.1, 2.14~git20250718.0e36779-1 |
Timeline
- Nov 18, 2025 CVE Published
- Oct 23, 2026 CVE Updated
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