CVE-2026-42372 - CERT CVE
ID CVE-2026-42372
Sažetak 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.
Reference
CVSS
Base: 8.8
Impact: 5.9
Exploitability:2.8
Pristup
VektorSloženostAutentikacija
ADJACENT_NETWORK LOW NONE
Impact
PovjerljivostCjelovitostDostupnost
HIGH HIGH HIGH
CVSS vektor CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Zadnje važnije ažuriranje 05-05-2026 - 19:32
Objavljeno 04-05-2026 - 17:16