CVE-2026-42375
גבוהה 8.8
תיאור (מקור, אנגלית)
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 "wrgn35_dlwbr_dir600l" 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.
מדדים
- CVSS 3.1
-
8.8 (HIGH)
מקור הציון: NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — סבירות ניצול
- 0% (אחוזון 000) נכון ל-31/7/2026
- CWE
- CWE-798
מוצרים מושפעים
dlink: dir-600l firmware; dlink: dir-600l
קישורים
- https://www.securin.io/zero-day/cve-2026-42375-hardcoded-telnet-backdoor-in-d-… ExploitThird Party Advisory
- https://www.securin.io/zero-day/cve-2026-42375-hardcoded-telnet-backdoor-in-d-… ExploitThird Party Advisory