8.8

CVE-2026-42372

Exploit

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 "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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Dlink ≫ Dir-605l Firmware
   Dlink ≫ Dir-605l Version a1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.3% 0.214
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
33c584b5-0579-4c06-b2a0-8d8329fcab9c 8.8 2.8 5.9
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-798 Use of Hard-coded Credentials

The product contains hard-coded credentials, such as a password or cryptographic key.

https://www.securin.io/zero-day/cve-2026-42372-hardcoded-telnet-backdoor-in-d-link-dir-605l-a1-end-of-life-
Third Party Advisory
Exploit