Linksys RE6500/RE6250/RE6300/RE6350/RE7000/RE9000 ssid1MACFilter os command injection

A vulnerability was found in Linksys RE6500, RE6250, RE6300, RE6350, RE7000 and RE9000 1.0.013.001/1.0.04.001/1.0.04.002/1.1.05.003/1.2.07.001. It has been declared as critical. This vulnerability affects the function ssid1MACFilter of the file /goform/ssid1MACFilter. The manipulation of the argument apselect_%d/newap_text_%d leads to os command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.