CVE-2025-0624

7.6 HIGH 1% exploit odds No fix listed Memory safety OS & kernel

What it is

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.

At a glance

Exploitability: Can be exploited from the same network segment with an admin-level account. High risk of data exposure, data tampering, service disruption.
Exploit odds: 1.4% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2025-02-19 19:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-11-04 22:17 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.4% in the next 30 days (EPSS).
Severity: 7.6 HIGH (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2025-02-19 19:15 UTC
Last modified: 2026-11-04 22:17 UTC
Exploit probability: 1.4% · EPSS, next 30 days
Weakness: CWE-787 · Out-of-bounds write
Record status: Deferred

Attack profile CVSS 3.1 · 7.6

Attack vector: Adjacent network
Complexity: High
Privileges needed: High
User interaction: None
Scope: Changed
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Is it in your code?

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References

NVD record · CVE.org record