How severe is CVE-2019-6725?

CVE-2019-6725 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-6725 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-6725?

CVE-2019-6725 affects Zyxel P-660hn-t1 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-6725?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-6725 published?

CVE-2019-6725 was published on 2019-05-31 and last updated on 2026-06-17.

CVE-2019-6725

CVE-2019-6725 is a critical-severity vulnerability in Zyxel P-660hn-t1 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Zyxel P-660hn-t1 Firmware
Published: 2019-05-31
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2019-6725?: CVE-2019-6725 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-6725 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-6725?: CVE-2019-6725 affects Zyxel P-660hn-t1 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-6725?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-6725 published?: CVE-2019-6725 was published on 2019-05-31 and last updated on 2026-06-17.

References

https://seclists.org/bugtraq/2019/May/78

Affected products (1)

cpe:2.3:o:zyxel:p-660hn-t1_firmware:2.00\(aakk.3\):*:*:*:*:*:*:*

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