CVE-2020-3681: Authenticated and encrypted payload MMEs can be forged and remotely sent to any HPAV2 system using a jailbreak key recov

CVE-2020-3681 is a vulnerability in HPAV2 systems where attackers can create fake authenticated and encrypted messages (MMEs, or multimedia messages) and send them remotely by extracting a secret key (jailbreak key) from the system's code. This happens because the system uses a broken or risky cryptographic algorithm (a weak method for encoding data securely).