What is CVE-2019-16327?

CVE-2019-16327 is a critical-severity vulnerability in Dlink Dir-601, classified under Improper Authentication. CVSS score: 9.8/10. Published 2019-12-26.

How severe is CVE-2019-16327?

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

Auth bypass in Dlink Dir-601

CVE-2019-16327

D-Link DIR-601 B1 2.00NA devices are vulnerable to authentication bypass. They do not check for authentication at the server side and rely on client-side validation, which is bypassable. NOTE: this is an end-of-life product.

Vulnerability class: Broken Authentication

Published 2019-12-26 · 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: 0.018 (77.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.7% 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

Dlink Dir-601 — versions b1
Dlink Dir-601 Firmware — versions 2.00na

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

0x62626262.wordpress.com/2019/12/24/dlink-dir-601-router-authentication-bypass-… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-16327?: CVE-2019-16327 is a critical-severity vulnerability in Dlink Dir-601, classified under Improper Authentication. CVSS score: 9.8/10. Published 2019-12-26.
How severe is CVE-2019-16327?: Critical severity. CVSS v3 base score is 9.8 out of 10.