VULNERABILITY INTELLIGENCE
CVE-2025-54771
CVSS score4.9 MEDIUM
EPSS probability0.15%
CISA KEVNot currently listed
Published2025-11-18
Last modified2026-10-18
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Description
A use-after-free vulnerability has been identified in the GNU GRUB (Grand Unified Bootloader). The flaw occurs because the file-closing process incorrectly retains a memory pointer, leaving an invalid reference to a file system structure. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded.
Weakness classification
- secalert@redhat.com: CWE-825