What is CVE-2019-6725?

CVE-2019-6725 is a critical-severity vulnerability in Zyxel P-660hn-T1, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2019-05-31.

How severe is CVE-2019-6725?

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

Vulnerability in Zyxel P-660hn-T1

CVE-2019-6725

The rpWLANRedirect.asp ASP page is accessible without authentication on ZyXEL P-660HN-T1 V2 (2.00(AAKK.3)) devices. After accessing the page, the admin user's password can be obtained by viewing the HTML source code, and the interface of the modem can be accessed as admin.

Published 2019-05-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.5th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.5% 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

Zyxel P-660hn-T1 — versions 2
Zyxel P-660hn-T1 Firmware — versions 2.00\(aakk.3\), 2.00(aakk.3)

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

seclists.org/bugtraq/2019/May/78 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2019-6725?: CVE-2019-6725 is a critical-severity vulnerability in Zyxel P-660hn-T1, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2019-05-31.
How severe is CVE-2019-6725?: Critical severity. CVSS v3 base score is 9.8 out of 10.