NAS manufacturer QNAP has issued a security warning published. It affects the products of the “QNAP VS Series NVR” series. There is a security hole classified as critical, but it was already fixed with the release of QVR 5.1.6 Build 20211109. The vulnerability, listed under CVE-2021-38685, allows successful attackers to execute any further commands. In addition to this loophole, the one listed under CVE-2021-38686 has been closed because there was a weakness in authentication. If you are using one of the devices from the series, the best thing to do is to make sure that you have a secure software version on the NAS.
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