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.

Published: 2017-12-20 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-5261 is rated High Risk (67.8/100): CVSS High severity, with high exploitation likelihood (EPSS 24.14%, 96th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-5261

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-07-06 25.05% 24.14% -0.91%
2 2025-03-30 31.80% 25.05% -6.75%
3 2025-03-29 — 31.80% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-5261

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2017-5261

Affected software / configurations for CVE-2017-5261

Vendor Product Version Raw CPE
cambiumnetworks cnpilot_r190v_firmware <= 4.3.2-r4 cpe:2.3:o:cambiumnetworks:cnpilot_r190v_firmware:*:*:*:*:*:*:*:*
cambiumnetworks cnpilot_e410_firmware <= 4.3.2-r4 cpe:2.3:o:cambiumnetworks:cnpilot_e410_firmware:*:*:*:*:*:*:*:*
cambiumnetworks cnpilot_r190n_firmware <= 4.3.2-r4 cpe:2.3:o:cambiumnetworks:cnpilot_r190n_firmware:*:*:*:*:*:*:*:*
cambiumnetworks cnpilot_e400_firmware <= 4.3.2-r4 cpe:2.3:o:cambiumnetworks:cnpilot_e400_firmware:*:*:*:*:*:*:*:*
cambiumnetworks cnpilot_e600_firmware <= 4.3.2-r4 cpe:2.3:o:cambiumnetworks:cnpilot_e600_firmware:*:*:*:*:*:*:*:*

References for CVE-2017-5261

cvelogic Threat Intelligence