D-Link DIR-601 B1 2.00NA devices are vulnerable to authentication bypass.

published 2019-12-26 6y ago modified 2026-06-17 4mo ago also EUVD-2019-7109

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.8%; EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits: 0; none known

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.

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Exploit prediction

1.81% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

0x62626262.wordpress.com https://0x62626262.wordpress.com/2019/12/24/dlink-dir-601-router-authentication-bypass-and-csrf/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-287 Improper Authentication

References

0x62626262.wordpress.com /2019/12/24/dlink-dir-601-router-authentication-bypass-and-csrf/
exploit, third-party-advisory

Sources

CVE List CVE-2019-16327
NVD CVE-2019-16327

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