What is CVE-2018-14080?

CVE-2018-14080 is a high-severity vulnerability in D-Link Dir-809 A1 Firmware, classified under Improper Authentication. CVSS score: 7.5/10. Published 2018-10-09.

How severe is CVE-2018-14080?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in D-Link Dir-809 A1 Firmware

CVE-2018-14080

An issue was discovered on D-Link DIR-809 A1 through 1.09, A2 through 1.11, and Guest Zone through 1.09 devices. One can bypass authentication mechanisms to download the configuration file.

Vulnerability class: Broken Authentication

Published 2018-10-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.018 (77.8th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

blog.nivel4.com/investigaciones/nuevas-vulnerabilidades-en-router-d-link-permit… (Third Party Advisory)

Frequently asked questions

What is CVE-2018-14080?: CVE-2018-14080 is a high-severity vulnerability in D-Link Dir-809 A1 Firmware, classified under Improper Authentication. CVSS score: 7.5/10. Published 2018-10-09.
How severe is CVE-2018-14080?: High severity. CVSS v3 base score is 7.5 out of 10.