Expired Pointer Dereference Affecting grub2 package, versions <2.12-150600.8.44.2


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.13% (4th percentile)

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  • Snyk IDSNYK-SLES156-GRUB2-14105252
  • published25 Nov 2025
  • disclosed24 Nov 2025

Introduced: 24 Nov 2025

CVE-2025-61663  (opens in a new tab)
CWE-825  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 grub2 to version 2.12-150600.8.44.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grub2 package and not the grub2 package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

A vulnerability has been identified in the GRUB2 bootloader's normal command that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the normal command is not properly unregistered when the module is unloaded. An attacker who can execute this command can force the system to access memory locations that are no longer valid. Successful exploitation leads directly to system instability, which can result in a complete crash and halt system availability. Impact on the data integrity and confidentiality is also not discarded.

CVSS Base Scores

version 3.1