CVE-2017-14421

Name: CVE-2017-14421
Creator: NVD / NIST
Published: 2017-09-13T17:29:00.527+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.25%

Last modified Jun 17, 2026

CVE-2017-14421 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.25% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.25%

80.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-798

Affected Software

Vendor	Product	Versions
Dlink	Dir-850l Firmware	<= fw208wwb02

References

https://pierrekim.github.io/blog/2017-09-08-dlink-850l-mydlink-cloud-0days-vulnerabilities.htmlExploit, Third Party Advisory
https://pierrekim.github.io/blog/2017-09-08-dlink-850l-mydlink-cloud-0days-vulnerabilities.htmlExploit, Third Party Advisory

Timeline

Published: Sep 13, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-14421?

How severe is CVE-2017-14421?

CVE-2017-14421 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.25% probability of exploitation in the next 30 days.

How do I fix CVE-2017-14421?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-14421?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST