How severe is CVE-2017-5261?

CVE-2017-5261 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-5261 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-5261?

CVE-2017-5261 primarily affects Cambiumnetworks Cnpilot R190v Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-5261?

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-2017-5261 published?

CVE-2017-5261 was published on 2017-12-20 and last updated on 2026-06-17.

CVE-2017-5261

CVE-2017-5261 is a high-severity vulnerability in Cambiumnetworks Cnpilot R190v Firmware with a CVSS 3.x base score of 8.8. 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-22.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 4.0
EPSS exploit prediction: 9% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Cambiumnetworks Cnpilot R190v Firmware
Published: 2017-12-20
Last modified: 2026-06-17

Description

In versions 4.3.2-R4 and prior of Cambium Networks cnPilot firmware, the 'ping' and 'traceroute' functions of the web administrative console expose a file path traversal vulnerability, accessible to all authenticated users.

Frequently asked questions

What is CVE-2017-5261?: In versions 4.3.2-R4 and prior of Cambium Networks cnPilot firmware, the 'ping' and 'traceroute' functions of the web administrative console expose a file path traversal vulnerability, accessible to all authenticated users.
How severe is CVE-2017-5261?: CVE-2017-5261 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-5261 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-5261?: CVE-2017-5261 primarily affects Cambiumnetworks Cnpilot R190v Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-5261?: 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-2017-5261 published?: CVE-2017-5261 was published on 2017-12-20 and last updated on 2026-06-17.

References

https://blog.rapid7.com/2017/12/19/r7-2017-25-cambium-epmp-and-cnpilot-multiple-vulnerabilities/

Affected products (5)

cpe:2.3:o:cambiumnetworks:cnpilot_r190v_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cambiumnetworks:cnpilot_e410_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cambiumnetworks:cnpilot_r190n_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cambiumnetworks:cnpilot_e400_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cambiumnetworks:cnpilot_e600_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Cambiumnetworks Cnpilot R190v Firmware

CVE-2017-5260 — High (CVSS 8.8): In versions 4.3.2-R4 and prior of Cambium Networks cnPilot firmware, although the option to access the configuration…
CVE-2017-5259 — High (CVSS 8.8): In versions 4.3.2-R4 and prior of Cambium Networks cnPilot firmware, an undocumented, root-privilege administration web…
CVE-2017-5263 — High (CVSS 8.0): Versions 4.3.2-R4 and prior of Cambium Networks cnPilot firmware lack CSRF controls that can mitigate the effects of…
CVE-2017-5262 — High (CVSS 8.0): In versions 4.3.2-R4 and prior of Cambium Networks cnPilot firmware, the SNMP read-only (RO) community string has…

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