BootHole

BootHole General information This repository was created to contain relevant helpful scripts and any additional tools or information that can assist others in managing their BootHole vulnerability mitigation plans. Windows Based Platforms We have created a Powershell script that will check the EF...

HvLoader

HvLoader Overview HvLoader.efi is an EFI application for loading an external hypervisor loader. HvLoader.efi loads a given hypervisor loader binary DLL, EFI, etc., and calls it's entry point passing HvLoader.efi ImageHandle. This way the hypervisor loader binary has access to HvLoader.efi's comma...

CVE-2017-2751

You'll find the .tex and .pdf file for CVE-2017-2751, a BIOS/EFI password extraction for consumer HP laptops...

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...

BlackLotus-Detection

CVE-2022-21894 Public repo for anything CVE-2022-21894 Main page https://www.microsoft.com/en-us/security/blog/2023/04/11/guidance-for-investigating-attacks-using-cve-2022-21894-the-blacklotus-campaign/ Windows Defender now capable of removing this threat "Possible vulnerable EFI bootloader " Bas...

CVE-2022-21894-Payload-New

This is a simple example payload for CVE-2022-21894 that demonstrates how an attacker could map a second stage payload in order to be able to call EFI services. A writeup of this vulnerability can be viewed here: https://github.com/Wack0/CVE-2022-21894. The code in this repository extends the PoC...

CVE-2022-21894-Payload

This is a simple example payload for CVE-2022-21894 that demonstrates how an attacker could map a second stage payload in order to be able to call EFI services. A writeup of this vulnerability can be viewed here: https://github.com/Wack0/CVE-2022-21894. The code in this repository extends the PoC...

ghidra-firmware-utils

Ghidra Firmware Utilities Various modules for Ghidra to assist with PC firmware reverse engineering. This was accepted as a coreboot project for GSoC 2019. Features PCI option ROM loader Implements a FS loader for PCI option ROMs handles hybrid ROMs with multiple images, e.g. legacy x86 + UEFI...

efiSeek

efiSeek for Ghidra About The analyzer automates the process of researching EFI files, helps to discover and analyze well-known protocols, smi handlers, etc. Features Finds known EFI GUID's Identifies protocols located with LOCATEPROTOCOL function Identifies functions used as the NOTIFY function...

ida-efiutils

Scripts EFI para IDA Pro Algunos scripts de IDA para ayudar con la ingeniería inversa de ejecutables EFI. Este paquete contiene los siguientes archivos: 1. efiutils.py - Módulo IDAPython con algunas funciones auxiliares 2. efiguids.py - Una colección de GUID conocidos para protocolos EFI 3...

The vulnerability of the efi_crash_gracefully_on_page_fault() function in the arch/x86/platform/efi/quirks.c module, which is part of the Linux operating system’s x86 kernel support, allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the efecrashgracefullyonpagefault function in the arch/x86/platform/efi/quirks.c module of the Linux operating system’s kernel support for x86 platforms is related to the execution of operations beyond the buffer boundaries in memory. Exploiting this vulnerability allows an...

The vulnerability of the __efi_capsule_setup_info() function in the drivers/firmware/efi/capsule-loader.c file of the Linux kernel’s firmware module allows a hacker to trigger a system failure.

The vulnerability of the eficapsulesetupinfo function in the drivers/firmware/efi/capsule-loader.c file of the Linux kernel firmware module is related to incorrect calculation of buffer size. Exploiting this vulnerability could allow an attacker to cause a system failure...

CVE-2026-25250 — Updated!

🕷️ 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...

Astra Linux – Vulnerability in Linux 5.15

In the efirtasmwrapper of efi-rt-wrapper.S, there is a possible way to bypass shadow stack protection due to a logical error in the code. This could result in a local escalation of privileges without the need for additional execution privileges. User interaction is not required for exploitation...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: arm64: efi: Make efirtlock a rawspinlock Running a rt-kernel base on 6.2.0-rc3-rt1 on an Ampere Altra outputs the following: BUG: A sleeping function is called from an invalid context at kernel/locking/spinlockrt.c:46 inatomic: 1...

Astra Linux – Vulnerability in edk2

The BootPerformanceTable pointer is retrieved from an NVRAM variable within PEI. It is recommended that the PcdFirmwarePerformanceDataTableS3Support be set to FALSE...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: EFI: Fixed a potential NULL dereference in efememreservepersistent. When iterating over a linked list, the result of memremap is dereferenced without checking if it is NULL. This patch adds a check that falls back to allocating a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: EFI: Runtime: Avoid EFIv2 runtime services on Apple x86 machines Aditya reports that his recent MacBookPro crashes during firmware updates when variable services are used at runtime. The culprit seems to be a call to...

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 – Vulnerabilities in Linux, Linux-5.10, Linux-6.1, Linux-5.15

In the Linux kernel, the following vulnerabilities have been resolved: efi/capsule-loader: corrected incorrect allocation size gcc-14 reports that the allocation using sizeofvoid on 32-bit architectures is insufficient for a 64-bit physaddrt: drivers/firmware/efi/capsule-loader.c: In the function...