edk2

============== EDK II Project A modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications from www.uefi.org. .. image::...

CVE-2022-34303

🕷️ CVE-2022-34303 - CryptoPro Boot Loader Vulnerability CryptoPro Secure Disk UEFI Shell - Bring Your Own Vulnerable UEFI Application BYOVUA - Secure Boot bypass via signed UEFI Shell and gSecurity2 corruption. 📑 Table of Contents Overview Background Bring Your Own Vulnerable UEFI Application The...

CVE-2022-34302

🕷️ CVE-2022-34302 - New Horizon Datasys Boot Loader Vulnerability New Horizon Datasys Reboot Restore Boot Loader - Bring Your Own Vulnerable UEFI Application BYOVUA - Secure Boot bypass via signed bootloader with built-in custom PE/COFF loader that loads unsigned UEFI applications. 📑 Table of...

initroot

initroot: Motorola Bootloader Kernel Cmdline Injection Secure Boot & Device Locking Bypass CVE-2016-10277 By Roee Hay / Aleph Research, HCL Technologies First stage exploit: Tethered jailbreak This exploit gains an ephemeral unrestricted root access on the device. For example, on cedric some...

CVE-2022-21894

baton drop CVE-2022-21894: Secure Boot Security Feature Bypass Vulnerability Windows Boot Applications allow the truncatememory setting to remove blocks of memory containing "persistent" ranges of serialised data from the memory map, leading to Secure Boot bypass. The truncatememory BCD element...

CVE-2025-0690

CVE-2025-0690: Integer Overflow Vulnerability in GRUB2 🛡️ Overview CVE-2025-0690 is a critical integer overflow vulnerability in the GRUB2 boot loader, allowing arbitrary code execution and Secure Boot bypass. This flaw affects systems that rely on GRUB2 for secure boot, exposing the system before...

CVE-2024-7344

🐞 CVE-2024-7344: Improper PE Image Loading This repository contains research material related to CVE-2024-7344, a Secure Boot bypass vulnerability affecting UEFI systems. It centralizes technical analysis of the vulnerability, attack flow documentation, and recreated applications designed to...

CVE-2026-25250

🕷️ CVE-2026-25250: Improper Trusted Bootloader Chain Validation A Microsoft-signed third-party bootloader that loads a secondary EFI binary with no signature or integrity verification, collapsing the Secure Boot chain of trust from within. 📑 Table of Contents Research Context Official References...

CVE-2025-47827

CVE-2025-47827 Proof-of-concept and vulnerability report for CVE-2025-47827. Contents Description Disclosure Impact Detection Mitigation Binaries Proof of Concept Resources Description In IGEL OS before v11, Secure Boot can be bypassed because the igel-flash-driver module improperly verifies a...

BlackX UEFI Bootkit Bypasses Secure Boot on Patched Windows Systems Missing Revocations

Diplomatic organizations in Central Asia have been targeted by a sophisticated new Unified Extensible Firmware Interface UEFI bootkit called BlackX. The activity, which singled out diplomatic entities in Tajikistan, Uzbekistan, and Turkmenistan in early 2026, is suspected to be orchestrated by a...

How APT41 revived the BlackLotus bootkit to attack diplomatic organizations in Central Asia

Introduction Back in October 2022, Kaspersky GReAT was looking into a peculiar advertisement on a hacking forum. A cybercriminal had been advertising a UEFI bootkit, dubbed BlackLotus, that could bypass Secure Boot, for $5,000. Given the low price for such powerful capabilities, the cybersecurity...

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 rmmod implementation allows the unloading of a module that serves as a dependency without checking whether any other dependent modules are still loaded, leading to a “use-after-free” scenario. This could allow arbitrary code to be...

Astra Linux – vulnerability in grub2

A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing valid values. If properly exploited, an attacker could trigger memory corruption, leading to arbitrary code executio...

Astra Linux – Vulnerability in edk2

In Ubuntu’s EDK2, a insecure default setting was left enabled, allowing UEFI Shell to be used. This enables an attacker with access to the operating system to bypass Secure Boot...

Astra Linux – vulnerability in grub2

A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grubgettextgetstrfromposition may overflow, resulting in an Out-of-bounds write. An attacker can exploit this issue to overwrite grub2’s sensitive heap data, ultimately enabling circumvention ...

Rocky Linux 9 [CIQ] Security Update: grub2-common / grub2-efi-aa64 / grub2-efi-aa64-cdboot / etc Multiple Vulnerabilities (crlsa-2023_0752)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20230752 advisory. grub2: Buffer overflow in grubfontconstructglyph can lead to out-of-bound write and possible secure boot bypass CVE-2022-2601 grub2: Heap based out-of-boun...

CentOS Linux 7 [TuxCare] Security Update: grub2 / grub2-common / grub2-efi-ia32-cdboot / grub2-efi-x64 / etc Multiple Vulnerabilities (CENTOS7:CLSA-2025:1744724536)

The CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS7:CLSA-2025:1744724536 advisory. - A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of its...

CentOS Linux 8 [TuxCare] Security Update: grub2-efi-ia32-cdboot / grub2-efi-ia32-modules / grub2-efi-x64 / etc Multiple Vulnerabilities (CENTOS-STREAM8:CLSA-2025:1744213211)

The CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS-STREAM8:CLSA-2025:1744213211 advisory. - A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly check the bounds of...

Rocky Linux 8 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-debugsource / grub2-efi-aa64 / etc Multiple Vulnerabilities (crlsa-2023_0049)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20230049 advisory. grub2: Buffer overflow in grubfontconstructglyph can lead to out-of-bound write and possible secure boot bypass CVE-2022-2601 grub2: Heap based out-of-boun...