CVE-2025-53627 Meshtastic firmware allows forged DMs with no PKC to show up as encrypted

Meshtastic is an open source mesh networking solution. The Meshtastic firmware starting from version 2.5 introduces asymmetric encryption PKI for direct messages, but when the pkiencrypted flag is missing, the firmware silently falls back to legacy AES-256-CTR channel encryption. This was an...