A use of externally-controlled format string vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers who have gained administrator access to obtain secret data or modify memory. We have already fixed the vulnerability in the following versions: QTS 5.1.9.2954 build 20241120 and later QTS 5.2.2.2950 build 20241114 and later QuTS hero h5.1.9.2954 build 20241120 and later QuTS hero h5.2.2.2952 build 20241116 and later