CVE-2025-54771

Nov. 19, 2025, 7:14 p.m.

4.9
Medium

Description

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. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded.

Product(s) Impacted

Product Versions
grub
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-825
Expired Pointer Dereference
The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.

References

https://access.redhat.com/security/cve/CVE-2025-54771
https://bugzilla.redhat.com/show_bug.cgi?id=2413823
http://www.openwall.com/lists/oss-security/2025/11/18/3

Tags

secalert@redhat.com
CWE-825
2025-11-18
CVE-2025-54771

CVSS Score

4.9 / 10

CVSS Data - 3.1

  • Attack Vector: LOCAL
  • Attack Complexity: HIGH
  • Privileges Required: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: LOW
  • Integrity Impact: LOW
  • Availability Impact: LOW

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

    View Vector String

Timeline

Published: Nov. 18, 2025, 7:15 p.m.
Last Modified: Nov. 19, 2025, 7:14 p.m.

Status : Awaiting Analysis

CVE has been marked for Analysis. Normally once in this state the CVE will be analyzed by NVD staff within 24 hours.

More info

Source

secalert@redhat.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.