What is CVE-2025-54770?

CVE-2025-54770 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-2025-54770?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in Gnu Grub2

CVE-2025-54770

A vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the net_set_vlan command is not properly unregistered wh…

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

Gnu Grub2 — versions 0
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Openshift Container Platform 4

Weakness classification (CWE)

CWE-825

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-2025-54770?: CVE-2025-54770 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-2025-54770?: Medium severity. CVSS v3 base score is 4.9 out of 10.