Netgear R7000P v1.3.3.154 was discovered to contain a stack overflow via the pptp_user_netmask parameter at ru_wan_flow.cgi. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.
https://www.netgear.com/about/security/
https://github.com/wudipjq/my_vuln/blob/main/Netgear6/vuln_60/60.md