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DEBIAN-CVE-2026-97876

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

CVE-2026-97876

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

CVE-2026-97876

A flaw in GRUB2 allows a local attacker with control over the boot configuration to bypass Secure Boot lockdown restrictions. The root cause is the insufficient validation of the MMIO base address passed to the serial command; GRUB fails to verify that the address corresponds to a legitimate UART...

CVE-2026-97876 Bypass of GRUB lockdown restriction in Secure Boot mode via serial command MMIO base address

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

CVE-2026-97876 Bypass of GRUB lockdown restriction in Secure Boot mode via serial command MMIO base address

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

CVE-2026-97876

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

CVE-2026-97876 Bypass of GRUB lockdown restriction in Secure Boot mode via serial command MMIO base address

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

EUVD-2026-91376

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

Linux Distros Unpatched Vulnerability : CVE-2026-97876

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while...

Rocky Linux 9.6 [TuxCare] Security Update: grub2-common / grub2-efi-aa64-modules / grub2-efi-x64 / etc (ALMALINUX9.6:CLSA-2026:1771504803)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1771504803 advisory. - A Use-After-Free vulnerability has been discovered in GRUB's gettext module. This flaw stems from a programming error where the gettext...

AlmaLinux 9.2 [TuxCare] Security Update: grub2-common / grub2-efi-aa64-modules / grub2-efi-x64 / etc (ALMALINUX9.2:CLSA-2026:1788432569)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1788432569 advisory. - GNU GRUB aka GRUB2 through 2.12 does not use a constant-time algorithm for grubcryptomemcmp and thus allows side-channel attacks...

Rocky Linux 9 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-debugsource / grub2-efi-aa64 / etc (crlsa-2025_20532)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202520532 advisory. grub2: grub-core/gettext: Integer overflow leads to Heap OOB Write. CVE-2024-45777 Tenable has extracted the preceding description block directly from the CIQ...

AlmaLinux 9.2 [TuxCare] Security Update: grub2-common / grub2-efi-aa64-modules / grub2-efi-x64 / etc (ALMALINUX9.2:CLSA-2024:1712672279)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2024:1712672279 advisory. - An authentication bypass flaw was found in GRUB due to the way that GRUB uses the UUID of a device to search for the configuration file tha...

Rocky Linux 9.6 [TuxCare] Security Update: ignition / ignition-edge / ignition-grub / ignition-validate Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1789469873)

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1789469873 advisory. - Enforce a recursion limit in Unmarshal to prevent stack exhaustion when parsing deeply-nested, recursive structures...

Security Bulletin: IBM DataPower Gateway affected by use after free in Grub (CVE-2025-61662)

Summary IBM DataPower Gateway has addressed CVE-2025-61662 in version 11.0.0.2 Vulnerability Details CVEID:CVE-2025-61662 DESCRIPTION: A Use-After-Free vulnerability has been discovered in GRUB's gettext module. This flaw stems from a programming error where the gettext command remains registered...

Astra Linux – Vulnerability in grub2

A flaw was discovered in grub2. A specially crafted JPEG file can cause the JPEG parser in grub2 to incorrectly check the boundaries of its internal buffers, leading to an out-of-bounds write. The possibility of overwriting sensitive information to bypass secure boot protections is still a concer...

Astra Linux – Vulnerability in grub2

A flaw was discovered in grub2 in versions prior to 2.06. The option parser allows an attacker to overwrite a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The greatest threat from this vulnerability is to data confidentiality and...

Astra Linux – Vulnerability in grub2

A flaw was discovered in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read without sufficient bounds checking, assuming that the USB device provides valid values. If exploited properly, an attacker could cause memory corruption, leading to arbitrary code...

Astra Linux – Vulnerability in grub2

Out-of-bounds write when handling split HTTP headers: When dealing with split HTTP headers, GRUB2’s HTTP code accidentally moves its internal data buffer point by one position. This can lead to an out-of-bounds write during the parsing of the HTTP request, resulting in writing a NULL byte beyond...