How severe is CVE-2019-17354?

CVE-2019-17354 has a CVSS 3.x base score of 9.4, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.

Is CVE-2019-17354 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-17354?

CVE-2019-17354 affects Zyxel Nbg-418n V2 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-17354?

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-2019-17354 published?

CVE-2019-17354 was published on 2019-10-09 and last updated on 2026-06-17.

CVE-2019-17354

CVE-2019-17354 is a critical-severity vulnerability in Zyxel Nbg-418n V2 Firmware with a CVSS 3.x base score of 9.4. 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-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.4)
CVSS v2: 7.5
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Zyxel Nbg-418n V2 Firmware
Published: 2019-10-09
Last modified: 2026-06-17

Description

wan.htm page on Zyxel NBG-418N v2 with firmware version V1.00(AARP.9)C0 can be accessed directly without authentication, which can lead to disclosure of information about the WAN, and can also be leveraged by an attacker to modify data fields of the page.

Frequently asked questions

What is CVE-2019-17354?: wan.htm page on Zyxel NBG-418N v2 with firmware version V1.00(AARP.9)C0 can be accessed directly without authentication, which can lead to disclosure of information about the WAN, and can also be leveraged by an attacker to modify data fields of the page.
How severe is CVE-2019-17354?: CVE-2019-17354 has a CVSS 3.x base score of 9.4, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.
Is CVE-2019-17354 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-17354?: CVE-2019-17354 affects Zyxel Nbg-418n V2 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-17354?: 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-2019-17354 published?: CVE-2019-17354 was published on 2019-10-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:zyxel:nbg-418n_v2_firmware:1.00\(aarp.9\)c0:*:*:*:*:*:*:*

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