#VU118730 Use-after-free in grub - CVE-2025-54770
Published: November 24, 2025
Vulnerability identifier: #VU118730
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-54770
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
grub
grub
Software vendor:
GNU
GNU
Description
The vulnerability allows an attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the net_set_vlan() function. An attacker with physical access to the system can perform a denial of service attack.
Remediation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.