The vulnerability of the telnetd.sh script of the D-Link DIR-600L router’s telnet service allows a hacker to gain unauthorized access to protected information, increase their privileges, and execute arbitrary commands.

The vulnerability of the telnetd.sh script of the D-Link DIR-600L router’s telnet service is related to the use of a static password, wrgn61dlwbrdir600L, for the Alphanetworks account. Exploiting this vulnerability allows an attacker to gain unauthorized access to protected information, enhance...

The vulnerability of the telnetd.sh script of the D-Link DIR-600L router’s telnet service allows a hacker to gain unauthorized access to protected information, increase their privileges, and execute arbitrary commands.

The vulnerability of the telnetd.sh script of the D-Link DIR-600L router’s telnet service is related to the use of the static password wrgn35dlwbrdir600l for the Alphanetworks account. Exploiting this vulnerability can allow an attacker to gain unauthorized access to protected information, enhanc...

The vulnerability of the telnetd.sh script of the D-Link DIR-605L router’s telnet service allows a hacker to gain unauthorized access to protected information, increase their privileges, and execute arbitrary commands.

The vulnerability of the telnetd.sh script of the D-Link DIR-605L router’s telnet service is related to the use of a static password, wrgn35dlwbrdir605l, for the Alphanetworks account. Exploiting this vulnerability can allow an attacker to gain unauthorized access to protected information, enhanc...

CVE-2026-42376

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 "Alphanetworks" and the static password "whdrv01dlobdir456U" read from /etc/config/imagesign. The custom telnetd...

CVE-2026-42373

D-Link DIR-605L Hardware Revision B2 End-of-Life, EOL contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn76dlwbrdir605L" read from /etc/alphaconfig/imagesign. The custom telnetd binary...

CVE-2026-42372

D-Link DIR-605L Hardware Revision A1 End-of-Life, EOL contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn35dlwbrdir605l" read from /etc/alphaconfig/imagesign. The custom telnetd binary...

EUVD-2026-27029

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 "Alphanetworks" and the static password "whdrv01dlobdir456U" read from /etc/config/imagesign. The custom telnetd...

CVE-2026-42376 D-Link DIR-456U A1 Hardcoded Telnet Backdoor Credentials

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 "Alphanetworks" and the static password "whdrv01dlobdir456U" read from /etc/config/imagesign. The custom telnetd...

CVE-2026-42376

CVE-2026-42376 affects D-Link DIR-456U hardware revision A1 (End-of-Life). The description reports a hardcoded telnet backdoor: at boot a telnet daemon runs with username “Alphanetworks” and password read from /etc/config/image_sign; a -u user:password flag is accepted by the custom telnetd, and ...

CVE-2026-42375 D-Link DIR-600L A1 Hardcoded Telnet Backdoor Credentials

D-Link DIR-600L Hardware Revision A1 End-of-Life contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn35dlwbrdir600l" read from /etc/alphaconfig/imagesign. The custom telnetd binary accep...

CVE-2026-42375

D-Link DIR-600L A1 (End-of-Life) is affected by CVE-2026-42375 due to a hardcoded telnet backdoor. The device runs a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password read from /etc/alpha_config/image_sign. The custom telnetd binary accepts a -u u...

CVE-2026-42374

D-Link DIR-600L Hardware Revision B1 End-of-Life contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn61dlwbrdir600L" read from /etc/alphaconfig/imagesign. The custom telnetd binary accep...

EUVD-2026-27025

D-Link DIR-600L Hardware Revision B1 End-of-Life contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn61dlwbrdir600L" read from /etc/alphaconfig/imagesign. The custom telnetd binary accep...

EUVD-2026-27023

D-Link DIR-605L Hardware Revision B2 End-of-Life, EOL contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn76dlwbrdir605L" read from /etc/alphaconfig/imagesign. The custom telnetd binary...

CVE-2026-42373

D-Link DIR-605L Hardware Revision B2 (End-of-Life) ships a hardcoded telnet backdoor. At boot, a telnet daemon starts via /bin/telnetd.sh with username "Alphanetworks" and a static password read from /etc/alpha_config/image_sign. The custom telnetd/login binaries validate credentials using strcmp...

CVE-2026-42373

D-Link DIR-605L Hardware Revision B2 End-of-Life, EOL contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn76dlwbrdir605L" read from /etc/alphaconfig/imagesign. The custom telnetd binary...

CVE-2026-42372

D-Link DIR-605L Hardware Revision A1 End-of-Life, EOL contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn35dlwbrdir605l" read from /etc/alphaconfig/imagesign. The custom telnetd binary...

CVE-2026-42372 D-Link DIR-605L A1 Hardcoded Telnet Backdoor Credentials

D-Link DIR-605L Hardware Revision A1 End-of-Life, EOL contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn35dlwbrdir605l" read from /etc/alphaconfig/imagesign. The custom telnetd binary...

D-Link DIR-600L 信任管理问题漏洞

The D-Link DIR-600L is an entry-level wireless router from D-Link Corporation. It supports 150Mbps wireless transmission and has 4 Gigabit wired ports. The DIR-600L has a trust management vulnerability, which stems from a hard-coded telnet backdoor. This vulnerability could allow unauthenticated...

CVE-2026-42375: Use of Hard-coded Credentials

D-Link DIR-600L Hardware Revision A1 End-of-Life contains a hardcoded telnet backdoor. The device starts a telnet daemon at boot via /bin/telnetd.sh with the username "Alphanetworks" and the static password "wrgn35dlwbrdir600l" read from /etc/alphaconfig/imagesign. The custom telnetd binary accep...