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CVE-2026-8863

Опубликовано: 09 июн. 2026
Источник: debian
EPSS Низкий

Описание

Multiple Microsoft-sigend UEFI SHIM bootloaders are vulnerable to SecureBoot bypass. An attacker with administrative privileges or the ability to modify the boot process could use one of the vulnerable shim bootloaders to bypass Secure Boot protections and execute arbitrary code before the operating system loads. Specific UEFI DBX update is required to block these vulnerable boot loaders.

EPSS

Процентиль: 1%
0.0011
Низкий

Связанные уязвимости

CVSS3: 7.8
nvd
3 месяца назад

Multiple Microsoft-sigend UEFI SHIM bootloaders are vulnerable to SecureBoot bypass. An attacker with administrative privileges or the ability to modify the boot process could use one of the vulnerable shim bootloaders to bypass Secure Boot protections and execute arbitrary code before the operating system loads. Specific UEFI DBX update is required to block these vulnerable boot loaders.

CVSS3: 7.8
msrc
3 месяца назад

UEFI Secure Boot Security Feature Bypass Vulnerability

CVSS3: 7.8
github
3 месяца назад

Multiple Microsoft-sigend UEFI SHIM bootloaders are vulnerable to SecureBoot bypass. An attacker with administrative privileges or the ability to modify the boot process could use one of the vulnerable shim bootloaders to bypass Secure Boot protections and execute arbitrary code before the operating system loads. Specific UEFI DBX update is required to block these vulnerable boot loaders.

CVSS3: 7.8
fstec
3 месяца назад

Уязвимость защитного механизма UEFI Secure Boot операционных систем Windows, позволяющая нарушителю обойти ограничения безопасности и выполнить произвольный код

EPSS

Процентиль: 1%
0.0011
Низкий