https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 18:21:28 +0000 https://vulnerability.circl.lu/vuln/cve-2026-42376 <p><strong>Affected:</strong> D-Link DIR-456U Firmware</p> <p>D-Link DIR-456U Hardware Revision A1 (End-of-Life, EOL) contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /etc/init0.d/S80telnetd.sh with the username &#34;Alphanetworks&#34; and the static password &#34;whdrv01_dlob_dir456U&#34; read from /etc/config/image_sign. The custom telnetd binary accepts a -u user:password flag, and the custom login binary uses strcmp() to validate credentials. Successful authentication grants an unauthenticated attacker on the local network a root shell with full administrative control. The device has reached End-of-Life (EOL) and will not receive patches.</p> <p><strong>Affected:</strong> D-Link DIR-456U Firmware</p> <p>D-Link DIR-456U Hardware Revision A1 (End-of-Life, EOL) contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /etc/init0.d/S80telnetd.sh with the username &#34;Alphanetworks&#34; and the static password &#34;whdrv01_dlob_dir456U&#34; read from /etc/config/image_sign. The custom telnetd binary accepts a -u user:password flag, and the custom login binary uses strcmp() to validate credentials. Successful authentication grants an unauthenticated attacker on the local network a root shell with full administrative control. The device has reached End-of-Life (EOL) and will not receive patches.</p> https://vulnerability.circl.lu/vuln/cve-2026-42376