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CVE-2025-54771

Опубликовано: 18 нояб. 2025
Источник: nvd
CVSS3: 4.9
EPSS Низкий

Описание

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.

EPSS

Процентиль: 4%
0.00018
Низкий

4.9 Medium

CVSS3

Дефекты

CWE-825

Связанные уязвимости

CVSS3: 4.9
ubuntu
3 месяца назад

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.

msrc
3 месяца назад

Grub2: use-after-free in grub_file_close()

CVSS3: 4.9
debian
3 месяца назад

A use-after-free vulnerability has been identified in the GNU GRUB (Gr ...

CVSS3: 4.9
github
3 месяца назад

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.

CVSS3: 4.9
fstec
3 месяца назад

Уязвимость загрузчика операционных систем Grub2, связанная с разыменованием указателя с истекшим сроком действия, позволяющая нарушителю вызвать отказ в обслуживании и получить несанкционированный доступ к системе

EPSS

Процентиль: 4%
0.00018
Низкий

4.9 Medium

CVSS3

Дефекты

CWE-825