PatchTheCVECVE-2017-5859: On Cambium Networks cnPilot R200/201 devices before 4.3, there is a vulnerability involving the certificate of
CVE-2017-5859 is a critical-severity flaw (CVSS 9.8) affecting cnpilot r200 series firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.2% (top 31%) |
| CISA exploited list | No |
| Published | 2017-03-10 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-5859?
cnpilot r200 series firmware: upgrade to newer than 4.2. Exact commands for each OS are on this page.
Is CVE-2017-5859 being exploited?
CVE-2017-5859 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-5859 affect?
CVE-2017-5859 affects cnpilot r200 series firmware. Severity is critical (CVSS 9.8). 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.
How urgent is CVE-2017-5859?
Priority 57/100. Critical severity; Remotely exploitable, no login, no user action