Xiaomi-C200-Firmware-Analysis

The Scope In this repo i will show how i got access to the UART interface even without the common set of exposed pins / test pads, using U-Boot and tricks to gain root on an early stage and eventually dumping the firmware Initial Reconnaissance There are a few key things clear from the PCB Chip...

chipicopwn

chipicopwn Bootloader exploit for Google Nest Hub 2nd Gen elaine requirements Google Nest Hub 2nd Gen Raspberry Pi Pico Powered USB hub or USB Y cable pico-sdk see Getting Started guide for installation instructions supported version factory firmware 2020/12 - U-Boot 2019.01-gbfc19012ea-dirty Dec...

provisioner

Provisioner Overview Provisioner is a developer-focused provisioning sidekick for single-board computers SBCs, particularly U-Boot-based platforms. It provides a self-contained environment to: Remotely access boards Automate bring-up workflows Provision kernels and root filesystems Execute flashi...

CVE-2025-45512

U-Boot 1.1.3 Exploit PoC Usage Guide Introduction This Proof of Concept PoC was created to verify vulnerabilities in the U-Boot bootloader version 1.1.3 compiled on August 27, 2019. The code implements five different vulnerabilities relevant to the OWASP IoT Security Testing Guide ISTG categories...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS : U-Boot vulnerabilities (USN-8884-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8884-1 advisory. Timo Preil discovered that U-Boot incorrectly handled certain malformed ZFS file system metadata. An...

USN-8884-1 u-boot vulnerabilities

Timo Preißl discovered that U-Boot incorrectly handled certain malformed ZFS file system metadata. An attacker could possibly use this issue to trigger an integer overflow and out-of-bounds memory access, resulting in arbitrary code execution or a denial of service. CVE-2025-70290 Timo Preißl...

USN-8884-1: U-Boot vulnerabilities

Timo Preißl discovered that U-Boot incorrectly handled certain malformed ZFS file system metadata. An attacker could possibly use this issue to trigger an integer overflow and out-of-bounds memory access, resulting in arbitrary code execution or a denial of service. CVE-2025-70290 Timo Preißl...

Linux Distros Unpatched Vulnerability : CVE-2026-71971

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - U-Boot before 2026.10-rc3 with CONFIGIPDEFRAG enabled contains an out-of-bounds write vulnerability in the netdefragment function in net/net.c. Remote attackers...

Linux Distros Unpatched Vulnerability : CVE-2026-74222

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - U-Boot before 2026.10-rc5 contains a use-after-free vulnerability in the httpcrecvcb function within the lwIP wget implementation. When HTTP data storage fails,...

Linux Distros Unpatched Vulnerability : CVE-2026-71973

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - U-Boot before 2026.10-rc4 contains an integer overflow vulnerability in sqfsreaddirectorytable function when allocating the directory table buffer. Attackers ca...

Linux Distros Unpatched Vulnerability : CVE-2026-71972

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - U-Boot through 2026.10-rc5 contains an out-of-bounds write vulnerability in the videodisplayrle8bitmap function in drivers/video/videobmp.c. Attackers can suppl...

Linux Distros Unpatched Vulnerability : CVE-2026-71974

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - U-Boot before 2026.10-rc3 contains an out-of-bounds write vulnerability in readslottedpartition that fails to validate image size against partition bounds...

SUSE CVE-2026-71971

U-Boot before 2026.10-rc3 with CONFIGIPDEFRAG enabled contains an out-of-bounds write vulnerability in the netdefragment function in net/net.c. Remote attackers can send a crafted IP fragment with non-zero offset and More-Fragments flag set during netboot to corrupt adjacent memory and crash the...

SUSE CVE-2026-71972

U-Boot through 2026.10-rc5 contains an out-of-bounds write vulnerability in the videodisplayrle8bitmap function in drivers/video/videobmp.c. Attackers can supply a crafted RLE8-compressed BMP image to corrupt memory adjacent to the framebuffer and crash the bootloader...

SUSE CVE-2026-71973

U-Boot before 2026.10-rc4 contains an integer overflow vulnerability in sqfsreaddirectorytable function when allocating the directory table buffer. Attackers can supply a crafted SquashFS image with an attacker-controlled superblock metablkscount value that causes heap buffer under-allocation and...

SUSE CVE-2026-71974

U-Boot before 2026.10-rc3 contains an out-of-bounds write vulnerability in readslottedpartition that fails to validate image size against partition bounds. Attackers with physical access can supply crafted boot media with oversized headers to write past the load buffer into bootloader memory on...

SUSE CVE-2026-74220

U-Boot before 2026.10-rc5 contains a buffer overflow in nfsreadreply function in net/nfs-common.c that allows attackers to corrupt memory by supplying crafted NFS READ reply lengths. A malicious NFS server can exploit signed integer handling to bypass length validation and write far past the...

SUSE CVE-2026-74221

U-Boot before 2026.10-rc5 contains a buffer overflow in nfsreadlinkreply function in net/nfs-common.c when processing NFS server responses. A malicious NFS server can send crafted READLINK replies with negative or oversized symlink length values to corrupt memory and crash the bootloader...

SUSE CVE-2026-74222

U-Boot before 2026.10-rc5 contains a use-after-free vulnerability in the httpcrecvcb function within the lwIP wget implementation. When HTTP data storage fails, the callback frees the connection PCB but returns ERRBUF instead of ERRABRT, causing the TCP input path to access released memory and...

SUSE CVE-2026-74225

U-Boot before 2026.10-rc5 contains out-of-bounds memory access in dhcp6parseoptions that fails to validate SERVERID and CLIENTID option lengths from DHCPv6 packets. Attackers on the local network can send crafted DHCPv6 ADVERTISE or REPLY packets during netboot to corrupt memory and crash the...