This vulnerability (CVE-2026-62658) affects NETGEAR Nighthawk RAX43 routers and is classified under CWE-20 (Improper Input Validation). It enables an attacker who is already authenticated with high privileges on the router to run unauthorized commands or code. The CVSS 4.0 base score is 4.7, reflecting a medium severity with attack vector limited to adjacent network, low attack complexity, and requiring privileges. No vendor advisory or patch information is provided, and no known exploits are reported in the wild.

An attacker with high privileges who is already logged into the affected router can execute unauthorized commands or code, potentially compromising the device's integrity or functionality. The vulnerability does not allow remote unauthenticated exploitation and does not require user interaction. The impact is limited to authenticated users with elevated privileges.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict administrative access to trusted users only and monitor for suspicious activity from authenticated sessions.