---
id: CVE-2024-45775
title: >-
  A flaw was found in grub2 where the grub_extcmd_dispatcher() function calls
  grub_arg_list_alloc() to allocate memory for the grub's argument list
summary: >-
  A flaw was found in grub2 where the grub_extcmd_dispatcher() function calls
  grub_arg_list_alloc() to allocate memory for the grub's argument list.
  However, it fails to check in case the memory allocation fails. Once the
  allocation fails,…
severity: medium
cvss: 5.2
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:H'
cwe:
  - CWE-252
published: '2025-02-18'
updated: '2026-07-20'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-45775'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2025:6990'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2024-45775'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2337481'
    label: secalert@redhat.com
tags:
  - nvd
epss: 0.00292
epssPercentile: 0.19375
ingestedAt: '2026-07-20T06:36:45.881Z'
---

## Overview

A flaw was found in grub2 where the grub_extcmd_dispatcher() function calls grub_arg_list_alloc() to allocate memory for the grub's argument list. However, it fails to check in case the memory allocation fails. Once the allocation fails, a NULL point will be processed by the parse_option() function, leading grub to crash or, in some rare scenarios, corrupt the IVT data.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.