What is CVE-2017-5259?

CVE-2017-5259 is a high-severity vulnerability in Cambium Networks Cnpilot, classified under Active Debug Code. CVSS score: 8.8/10. Published 2017-12-20.

How severe is CVE-2017-5259?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2017-5259 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Cambium Networks Cnpilot

CVE-2017-5259

In versions 4.3.2-R4 and prior of Cambium Networks cnPilot firmware, an undocumented, root-privilege administration web shell is available using the HTTP path https://<device-ip-or-hostname>/adm/syscmd.asp.

Published 2017-12-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.324 (98.3th percentile), scored 2026-09-28.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.306 · newest: 0.324 · change: +0.018

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

rapid7/metasploit-framework

References

blog.rapid7.com/2017/12/19/r7-2017-25-cambium-epmp-and-cnpilot-multiple-vulnera… (Third Party Advisory)

Frequently asked questions

What is CVE-2017-5259?: CVE-2017-5259 is a high-severity vulnerability in Cambium Networks Cnpilot, classified under Active Debug Code. CVSS score: 8.8/10. Published 2017-12-20.
How severe is CVE-2017-5259?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2017-5259 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.