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CVE-2026-42373

8.8 Élevée

Publiée le 04/05/2026 à 19:16 · Modifiée le 17/06/2026 à 12:47 · Analysée par le NVD · Source : 33c584b5-0579-4c06-b2a0-8d8329fcab9c

Description

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.

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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
3.1 9.8 Critique 33c584b5-0579-4c06-b2a0-8d8329fcab9c CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1 8.8 Élevée nvd@nist.gov (NVD) CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Faiblesses (CWE)

Références

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