What is CVE-2017-14421?

CVE-2017-14421 is a critical-severity vulnerability in Dlink Dir-850l, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2017-09-13.

How severe is CVE-2017-14421?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Dlink Dir-850l

CVE-2017-14421

D-Link DIR-850L REV. B (with firmware through FW208WWb02) devices have a hardcoded password of wrgac25_dlink.2013gui_dir850l for the Alphanetworks account upon device reset, which allows remote attackers to obtain root access via a TELNET session.

Published 2017-09-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.023 (82.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

pierrekim.github.io/blog/2017-09-08-dlink-850l-mydlink-cloud-0days-vulnerabilit… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2017-14421?: CVE-2017-14421 is a critical-severity vulnerability in Dlink Dir-850l, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2017-09-13.
How severe is CVE-2017-14421?: Critical severity. CVSS v3 base score is 9.8 out of 10.