Pico 300alpha2 Exploit Online

: Always ensure that you are searching for and testing exploits only in authorized, controlled environments (like CTFs or local labs). Using exploit code against systems you do not own is illegal and unethical.

Writeup for Cyber Material Hack Havoc CTF Challenges - HackMD pico 300alpha2 exploit

The vendor (Pico Silicon Labs) released a firmware update on January 15, 2026, which addresses the root causes: : Always ensure that you are searching for

Installing a newer official Over-The-Air (OTA) update will likely patch this exploit and revert your changes. 💡 Troubleshooting 💡 Troubleshooting Ensure that hardware is moved from

Ensure that hardware is moved from alpha/beta revisions to stable, hardened releases before deployment in the field.

Delivery of the payload via [e.g., Serial, Network Socket, or Input Form]. Sample Exploit Script (Python Fragment)

Once the attacker achieves code execution (usually by jumping to a ROP chain that drops a reverse shell on TCP port 4444), the unauthenticated firmware endpoint at /cgi-bin/update over HTTP (port 80) can be used to flash a custom firmware image. The endpoint requires no token or authentication; only a POST with multipart/form-data containing a firmware.bin file.