CVE-2026-42375 | D-Link DIR-600L A1 /bin/telnetd.sh strcmp hard-coded credentials

A vulnerability classified as critical has been found in D-Link DIR-600L A1. This affects the function strcmp of the file /bin/telnetd.sh. The manipulation leads to hard-coded credentials. This vulnerability only affects products that are no longer supported by the maintainer.

This vulnerability is traded as CVE-2026-42375. Access to the local network is required for this attack to succeed. There is no exploit available.