CVE-2018-0407: A vulnerability in the web-based management interface of Cisco Small Business 300 Series (Sx300) Managed Sw...

Security readout for executives and security teams

This Cisco Small Business Sx300 switch issue could let an authenticated attacker plant script that runs in an administrator's browser after a crafted link is clicked. The risk is mainly to network management sessions and browser-held data, not direct unauthenticated device takeover based on the supplied sources. Organizations using Cisco Small Business 300 Series Sx300 Managed Switches with the web management interface enabled are the likely exposure group, especially where administrators access it from shared or less-controlled browsing environments. Treat this as a targeted administration-plane risk. It is not documented here as actively exploited, but affected switches manage network infrastructure, so remediation should be scheduled with normal network maintenance priority. Mitigation focus: Review Cisco advisory cisco-sa-20180801-sb-pxss for vendor guidance and fixed firmware details.; Limit switch web management access to trusted administrative networks or VPN paths.; Avoid exposing the management interface to untrusted users or general office networks..

Prepared

Jun 7, 2026, 05:54 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.