CVE-2025-0624
7.6
HIGH
CVSS 3.1
EPSS 1.4%
Description
A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grub_strcpy() function. During this step, it fails to consider the environment variable length when allocating the internal buffer, resulting in an out-of-bounds write. If correctly exploited, this issue may result in remote code execution through the same network segment grub is searching for the boot information, which can be used to by-pass secure boot protections.
How to fix CVE-2025-0624
To remediate CVE-2025-0624, upgrade the affected package to a fixed version below.
- —upgrade to 2.06-3~deb11u7 or later
Is CVE-2025-0624 being exploited?
Low — EPSS is 1.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.06-3~deb11u7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.6 | CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |