CVE-2025-54771 | BDVDB-2026-302421 Detail

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.

Impact#

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Exploit#

History#

1. Version 12025-11-18Record published in the CVE List.
2. Version 22026-11-05Most recent update recorded in the CVE List.