Linksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 RP_setBasicAuto um_rp_autochannel stack-based overflow

A vulnerability has been found in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 up to 20250801. This vulnerability affects the function um_rp_autochannel of the file /goform/RP_setBasicAuto. The manipulation of the argument apcli_AuthMode_2G/apcli_AuthMode_5G leads to stack-based buffer overflow. 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.