A path traversal vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow users to read the contents of unexpected files and expose sensitive data via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.0.2444 build 20230629 and later QuTS hero h5.1.0.2424 build 20230609 and later QuTScloud c5.1.0.2498 and later