How severe is CVE-2017-5859?

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

Vulnerability in Cambiumnetworks Cnpilot R200

CVE-2017-5859

On Cambium Networks cnPilot R200/201 devices before 4.3, there is a vulnerability involving the certificate of the device and its RSA keys, aka RBN-183.

Published 2017-03-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.012 (68.1th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

References

support.cambiumnetworks.com/file/3f88842a39f37b0d4ce5d43e5aa21bf1c4f9f1ca (Permissions Required)

Frequently asked questions

What is CVE-2017-5859?: CVE-2017-5859 is a critical-severity vulnerability in Cambiumnetworks Cnpilot R200. CVSS score: 9.8/10. Published 2017-03-10.
How severe is CVE-2017-5859?: Critical severity. CVSS v3 base score is 9.8 out of 10.