CVE-2025-54770: Grub2: use-after-free in net_set_vlan

Overview

Severity

Medium (CVSS 4.9)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2025-Nov

Released

2025-11-21

Last Updated

2026-08-07

EPSS Score

0.15% (percentile: 3.4%)

Affected Products (1)

Open Source Software

• cbl2 grub2 2.06-15 on CBL Mariner 2.0

Revision History

• 2025-11-21: Information published.
• 2026-08-07: Information published.