Search criteria
4 vulnerabilities found for DIR-605L Firmware by D-Link
CVE-2026-42373 (GCVE-0-2026-42373)
Vulnerability from nvd – Published: 2026-05-04 15:57 – Updated: 2026-05-05 12:43 Unsupported When Assigned
VLAI?
Title
D-Link DIR-605L B2 Hardcoded Telnet Backdoor Credentials
Summary
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 "wrgn76_dlwbr_dir605L" read from /etc/alpha_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.
Severity ?
9.8 (Critical)
CWE
- CWE-798 - Use of Hard-coded Credentials
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| D-Link | DIR-605L Firmware |
Affected:
B2
(custom)
cpe:2.3:o:dlink:dir-605l_firmware:*:*:*:*:*:*:*:* |
Date Public ?
2026-04-24 00:00
Credits
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CVE-2026-42372 (GCVE-0-2026-42372)
Vulnerability from nvd – Published: 2026-05-04 15:53 – Updated: 2026-05-05 03:56 Unsupported When Assigned
VLAI?
Title
D-Link DIR-605L A1 Hardcoded Telnet Backdoor Credentials
Summary
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 "wrgn35_dlwbr_dir605l" read from /etc/alpha_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.
Severity ?
8.8 (High)
CWE
- CWE-798 - Use of Hard-coded Credentials
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| D-Link | DIR-605L Firmware |
Affected:
A1
(custom)
cpe:2.3:o:dlink:dir-605l_firmware:*:*:*:*:*:*:*:* |
Date Public ?
2026-04-24 15:17
Credits
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CVE-2026-42373 (GCVE-0-2026-42373)
Vulnerability from cvelistv5 – Published: 2026-05-04 15:57 – Updated: 2026-05-05 12:43 Unsupported When Assigned
VLAI?
Title
D-Link DIR-605L B2 Hardcoded Telnet Backdoor Credentials
Summary
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 "wrgn76_dlwbr_dir605L" read from /etc/alpha_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.
Severity ?
9.8 (Critical)
CWE
- CWE-798 - Use of Hard-coded Credentials
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| D-Link | DIR-605L Firmware |
Affected:
B2
(custom)
cpe:2.3:o:dlink:dir-605l_firmware:*:*:*:*:*:*:*:* |
Date Public ?
2026-04-24 00:00
Credits
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CVE-2026-42372 (GCVE-0-2026-42372)
Vulnerability from cvelistv5 – Published: 2026-05-04 15:53 – Updated: 2026-05-05 03:56 Unsupported When Assigned
VLAI?
Title
D-Link DIR-605L A1 Hardcoded Telnet Backdoor Credentials
Summary
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 "wrgn35_dlwbr_dir605l" read from /etc/alpha_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.
Severity ?
8.8 (High)
CWE
- CWE-798 - Use of Hard-coded Credentials
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| D-Link | DIR-605L Firmware |
Affected:
A1
(custom)
cpe:2.3:o:dlink:dir-605l_firmware:*:*:*:*:*:*:*:* |
Date Public ?
2026-04-24 15:17
Credits
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"value": "\u003cp\u003eD-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 \"wrgn35_dlwbr_dir605l\" read from /etc/alpha_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.\u0026nbsp;\u003c/p\u003e"
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"name": "D-Link DIR-605L Support Page",
"url": "https://www.securin.io/zero-day/cve-2026-42372-hardcoded-telnet-backdoor-in-d-link-dir-605l-a1-end-of-life-"
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