How severe is CVE-2017-16902?

CVE-2017-16902 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-16902 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-16902?

CVE-2017-16902 affects Vonage Vdv-23 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-16902?

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

When was CVE-2017-16902 published?

CVE-2017-16902 was published on 2017-11-20 and last updated on 2026-06-17.

CVE-2017-16902

CVE-2017-16902 is a high-severity vulnerability in Vonage Vdv-23 Firmware with a CVSS 3.x base score of 7.5. 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-119.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Vonage Vdv-23 Firmware
Published: 2017-11-20
Last modified: 2026-06-17

Description

On the Vonage VDV-23 115 3.2.11-0.9.40 home router, sending a long string of characters in the loginPassword and/or loginUsername field to goform/login causes the router to reboot.

Frequently asked questions

What is CVE-2017-16902?: On the Vonage VDV-23 115 3.2.11-0.9.40 home router, sending a long string of characters in the loginPassword and/or loginUsername field to goform/login causes the router to reboot.
How severe is CVE-2017-16902?: CVE-2017-16902 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-16902 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-16902?: CVE-2017-16902 affects Vonage Vdv-23 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-16902?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-16902 published?: CVE-2017-16902 was published on 2017-11-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:vonage:vdv-23_firmware:3.2.11-0.9.40:*:*:*:*:*:*:*

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