CVE-2026-1744: D-Link DSL-6641k Firmware

Medium severity, CVSS 4.8. EPSS: 0.5% chance of exploitation in the next 30 days.

A vulnerability was found in D-Link DSL-6641K N8.TR069.20131126. Affected by this issue is the function doSubmitPPP of the file sp_pppoe_user.js. The manipulation of the argument Username results in cross site scripting. The attack may be launched remotely. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer.

Affected products

• D-Link DSL-6641k Firmware: version n8.tr069.20131126 only

Published 2026-02-02. Last modified 2026-06-17.