This is a high-severity found in QNAP devices. An attacker could exploit it to execute arbitrary commands over the network. Impact: Remote Code Execution (RCE) on the NAS.
QNAP addressed this in their security advisory by releasing firmware updates for affected OS versions (QTS and QuTS hero). 23356 rar
If you are looking for a cybersecurity challenge write-up, is the ID for the CSAW CTF "Adversarial" crypto challenge. This is a high-severity found in QNAP devices
The challenge typically involves understanding a custom or slightly modified encryption routine. 23356 rar