The QNAP TS-239 Pro and TS-639 Pro with firmware 2.1.7 0613, 3.1.0 0627, and 3.1.1 0815 create a LUKS partition by using the AES-256 cipher in plain CBC mode, which allows local users to obtain sensitive information via a watermark attack.

Inclusion of sensitive information in the source code has been reported to affect certain QNAP switches running QSS. If exploited, this vulnerability allows attackers to read application data. This issue affects: QNAP Systems Inc. QSS versions prior to 1.0.3 build 20210505 on QSW-M2108-2C; versions prior to 1.0.3 build 20210505 on QSW-M2108-2S; versions prior to 1.0.3 build 20210505 on QSW-M2108R-2C; versions prior to 1.0.12 build 20210506 on QSW-M408.

An out-of-bounds read vulnerability has been reported to affect Media Streaming add-on. If an attacker gains local network access, they can then exploit the vulnerability to obtain secret data. We have already fixed the vulnerability in the following version: Media Streaming add-on 500.1.1.6 ( 2024/08/02 ) and later

An out-of-bounds read vulnerability has been reported to affect File Station 5. If a local attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.4847 and later

The get_random_int function in drivers/char/random.c in the Linux kernel before 2.6.30 produces insufficiently random numbers, which allows attackers to predict the return value, and possibly defeat protection mechanisms based on randomization, via vectors that leverage the function's tendency to "return the same value over and over again for long stretches of time."