Vulnerability in Gnu Grub2
CVE-2025-54771
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…
EPSS: 0.000 (5.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking)
- secalert@redhat.com
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2025-54771?
- CVE-2025-54771 is a medium-severity vulnerability in Gnu Grub2, classified under CWE-825. CVSS score: 4.9/10. Published 2025-11-18.
- How severe is CVE-2025-54771?
- Medium severity. CVSS v3 base score is 4.9 out of 10.