What is CVE-2026-42372?

CVE-2026-42372 is a high-severity vulnerability in D-link Dir-605l Firmware, classified under Use of Hard-coded Credentials. CVSS score: 8.8/10. Published 2026-05-04.

How severe is CVE-2026-42372?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in D-link Dir-605l Firmware

CVE-2026-42372

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" re…

EPSS: 0.001 (19.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

D-link Dir-605l Firmware — versions A1
Dlink Dir-605l — versions a1
Dlink Dir-605l_firmware

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

D-Link DIR-605L Support Page (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2026-42372?: CVE-2026-42372 is a high-severity vulnerability in D-link Dir-605l Firmware, classified under Use of Hard-coded Credentials. CVSS score: 8.8/10. Published 2026-05-04.
How severe is CVE-2026-42372?: High severity. CVSS v3 base score is 8.8 out of 10.