CVE-2026-42374 D-Link DIR-600L B1 Hardcoded Telnet Backdoor Credentials

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...

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...

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...

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-2026-42372

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...

vulnerability-research

Vulnerability Research & Responsible Disclosure Shivam Paji...

D-Link DIR-605L 信任管理问题漏洞

The D-Link DIR-605L is a wireless router produced by D-Link Corporation. The D-Link DIR-605L in the Hardware Revision A1 version has a trust management vulnerability. This vulnerability stems from a hard-coded telnet backdoor, which allows unauthorized attackers on the local network to obtain roo...

CVE-2026-42374: Use of Hard-coded Credentials

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...

CVE-2026-42376: Use of Hard-coded 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-2026-42372: Use of Hard-coded 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-456U 信任管理问题漏洞

The D-Link DIR-456U is a wireless router produced by D-Link Corporation. The D-Link DIR-456U Hardware Revision A1 has a vulnerability related to trust management. This vulnerability stems from a hard-coded telnet backdoor, which may allow unauthenticated attackers on the local network to obtain a...

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...

CVE-2026-42373: Use of Hard-coded Credentials

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...

D-Link DIR-605L 信任管理问题漏洞

The D-Link DIR-605L is a wireless router produced by D-Link Corporation. The D-Link DIR-605L Hardware Revision B2 version has a vulnerability related to trust management. This vulnerability stems from a hard-coded telnet backdoor, which allows unauthenticated attackers on the local network to...

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...

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. There is a trust management vulnerability in the D-Link DIR-600L Hardware Revision A1. This vulnerability stems from a hard-coded telnet backdoor...

CVE-2026-7554

A vulnerability was determined in D-Link M60 up to 1.20B02. Affected by this issue is some unknown functionality of the file /usr/bin/httpd. This manipulation causes weak password recovery. The attack can be initiated remotely. A high degree of complexity is needed for the attack. The exploitatio...

CVE-2026-7554 D-Link M60 httpd password recovery

A vulnerability was determined in D-Link M60 up to 1.20B02. Affected by this issue is some unknown functionality of the file /usr/bin/httpd. This manipulation causes weak password recovery. The attack can be initiated remotely. A high degree of complexity is needed for the attack. The exploitatio...