uefi-firmware

What it is and what it does

uefi-firmware is a Python module for analyzing and manipulating UEFI firmware binaries. It provides parsing and extraction capabilities for UEFI firmware volumes, capsules, Intel ME modules, Dell PFS updates, and other firmware formats commonly found in BIOS updates from major vendors. The module includes both a programmatic API (via classes like AutoParser) and command-line tools (uefi-firmware-parser script) for common tasks.

The package is designed for firmware security research, reverse engineering, and analysis workflows. It can detect firmware types automatically, extract nested structures to disk, inject or replace sections within firmware files, and generate firmware descriptors. It supports multiple compression schemes including Tiano/EFI and LZMA, and includes utilities for GUID extraction and IDA Python integration.

Use it for:

• Analyze BIOS/UEFI updates from vendors to identify firmware structure and embedded components before deployment
• Extract Intel ME firmware modules from system images for security auditing and vulnerability research
• Inject or replace firmware sections for testing, patching, or security research on UEFI volumes
• Batch-process firmware files to catalog GUIDs and generate reverse-engineering reference data for IDA
• Detect and parse firmware objects in binary blobs or unknown firmware images using brute-force scanning

Worth the install?

AI-flagged interpretation of the facts on this page — verify before relying

Parses, extracts, and recreates UEFI firmware volumes, including BIOS, OptionROM, Intel ME, and other firmware formats from binary files.

Yes, if you work with UEFI firmware analysis, security research, or BIOS reverse engineering. The package is actively maintained, has no known vulnerabilities, and provides both programmatic and CLI interfaces. Install friction is moderate due to compilation requirements, but pre-built wheels are available for common platforms. Not relevant for general application development.

Install

uefi-firmware on PyPI

pip install uefi-firmware

uv add uefi-firmware

poetry add uefi-firmware

Installing uefi-firmware

Before you install

Medium install friction due to compiled wheels for multiple platforms; requires Python development headers and gcc for compression/decompression features. Active maintenance with recent release (71 days ago) and 919 repository stars.

License in practice

BSD-3-Clause is permissive, allowing commercial and private use with attribution; no significant restrictions for most use cases.

Quickstart

import uefi_firmware
with open('/path/to/firmware.rom', 'rb') as fh:
    file_content = fh.read()
parser = uefi_firmware.AutoParser(file_content)
if parser.type() != 'unknown':
    firmware = parser.parse()
    firmware.showinfo()

Requires Python >= 3.10; compression/decompression features need Python development headers and gcc installed on the system.

Verify before relying

• Whether all supported vendor firmware formats (ASRock, Dell, Gigabyte, etc.) parse reliably in current version 1.16
• Performance characteristics when processing large firmware files or performing byte-by-byte brute-force scanning
• Completeness of GUID injection functionality and whether it remains non-scriptable as documented

Package facts

Evidence: uefi_firmware-1.16-cp310-abi3-macosx_10_9_universal2.whl; uefi_firmware-1.16-cp310-abi3-macosx_10_9_x86_64.whl; uefi_firmware-1.16-cp310-abi3-macosx_11_0_arm64.whl; uefi_firmware-1.16-cp310-abi3-manylinux1_i686.manylinux_2_28_i686.manylinux_2_5_i686.whl; uefi_firmware-1.16-cp310-abi3-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl; uefi_firmware-1.16-cp310-abi3-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl; uefi_firmware-1.16-cp310-abi3-musllinux_1_2_aarch64.whl; uefi_firmware-1.16-cp310-abi3-musllinux_1_2_i686.whl; uefi_firmware-1.16-cp310-abi3-musllinux_1_2_x86_64.whl; uefi_firmware-1.16-cp310-abi3-win32.whl; uefi_firmware-1.16-cp310-abi3-win_amd64.whl; uefi_firmware-1.16-cp310-abi3-win_arm64.whl; uefi_firmware-1.16-cp314-cp314t-macosx_10_15_universal2.whl; uefi_firmware-1.16-cp314-cp314t-macosx_10_15_x86_64.whl; uefi_firmware-1.16-cp314-cp314t-macosx_11_0_arm64.whl; uefi_firmware-1.16-cp314-cp314t-manylinux1_i686.manylinux_2_28_i686.manylinux_2_5_i686.whl; uefi_firmware-1.16-cp314-cp314t-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl; uefi_firmware-1.16-cp314-cp314t-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl; uefi_firmware-1.16-cp314-cp314t-musllinux_1_2_aarch64.whl; uefi_firmware-1.16-cp314-cp314t-musllinux_1_2_i686.whl

Keywords: security, uefi, firmware, parsing, bios

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