CVE-2025-70545: Belden Ppc 2k05x Firmware

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

A stored cross-site scripting (XSS) vulnerability exists in the web management interface of the PPC (Belden) ONT 2K05X router running firmware v1.1.9_206L. The Common Gateway Interface (CGI) component improperly handles user-supplied input, allowing a remote, unauthenticated attacker to inject arbitrary JavaScript that is persistently stored and executed when the affected interface is accessed.

Affected products

• Belden Ppc 2k05x Firmware: version 1.1.9_206l only

Published 2026-02-04. Last modified 2026-07-05.