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

A vulnerability, which was classified as critical, has been 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. This issue affects the function RP_pingGatewayByBBS of the file /goform/RP_pingGatewayByBBS. The manipulation of the argument ip/nm/gw leads to os command injection. The attack may 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.