Command injection vulnerability in LDAP Server in QNAP QTS 4.2.6 build 20171208, QTS 4.3.3 build 20180402, QTS 4.3.4 build 20180413 and their earlier versions could allow remote attackers to run arbitrary commands or install malware on the NAS.
QNAP has already patched this vulnerability. This security concern allows a remote attacker to run arbitrary commands on the QNAP Video Station 5.1.3 (for QTS 4.3.3), 5.2.0 (for QTS 4.3.4), and earlier.