#VU104080 Out-of-bounds write in grub - CVE-2025-0624

Vulnerability identifier: #VU104080

Vulnerability risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-0624

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
grub
Universal components / Libraries / Libraries used by multiple products

Vendor: GNU

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the grub_net_search_config_file() function. A local user can trigger an out-of-bounds write and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

grub: 2.00 - 2.12

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External links
https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.