Netgear JWNR2000v2 v1.0.0.11, XWN5001 v0.4.1.1, and XAVN2001v2 v0.4.0.7 were discovered to contain multiple buffer overflows via the http_passwd and http_username parameters in the update_auth function.
https://www.netgear.com/about/security/
https://github.com/FirmRec/IoT-Vulns/blob/main/netgear/http_passwd_auth/README.md