CVE-2017-5255 HIGH

CVE-2017-5255 exposure check for Epmp 1000 Firmware

Check whether public-facing assets expose Cambiumnetworks Epmp 1000 Firmware signals related to CVE-2017-5255. Severity: HIGH.

From CVE Record to External Exposure

In version 3.5 and prior of Cambium Networks ePMP firmware, a lack of input sanitation for certain parameters on the web management console allows any authenticated user (including the otherwise low-privilege readonly user) to inject shell meta-characters as part of a specially-crafted POST request to the get_chart function and run OS-level commands, effectively as root.

Epmp 1000 Firmware vulnerability should be triaged by matching the affected vendor and product to live, internet-facing assets rather than treating the CVE as an abstract feed item. ThreatPort focuses on the first question that budget-constrained IT leaders and CISOs ask: what can an outside observer find today, how severe is it, and what should be fixed first?

Known Exploitation Record

Known ransomware campaign use
Not recorded
EPSS exploitation probability
74.56% (99p)
CVSS base score
8.8 (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Disclosed
2017-12-20
Weakness type
CWE-78

Source: CISA Known Exploited Vulnerabilities catalog and FIRST.org EPSS.

What ThreatPort Checks

Identify externally reachable services that appear related to Cambiumnetworks Epmp 1000 Firmware.
Map detected technologies to CVE-2017-5255, severity context, and practical remediation priority.
Check TLS, DNS, headers, exposed panels, stale endpoints, and service fingerprints from a public attacker perspective.
Produce a concise scorecard first, then unlock deeper AI pentest evidence and PDF reporting when remediation planning begins.

The output is intentionally practical: ownership clues, risk context, remediation hints, and repeatable evidence that can be shared with technical teams or leadership. It is not positioned as magic compliance automation or a replacement for human security judgment.

Lean security teams rarely need another broad vulnerability list. They need to know whether an exposed endpoint, an expired certificate, a weak DNS setting, or a CVE-linked service is likely to affect the systems they actually run. ThreatPort scans from the outside in, ranks what it finds by real reachability rather than raw CVSS, and hands back evidence a team can act on the same day.

Route-Specific Evidence Profile

CVE-2017-5255 affects Cambiumnetworks Epmp 1000 Firmware, a CWE-78 weakness. Disclosed 2017-12-20. This page exists to answer one question: is anything you own externally reachable and running it.

Assets This Page Should Care About

Public domains Subdomains Externally reachable web apps TLS endpoints DNS records

Signals Worth Prioritizing

Forgotten subdomains
Weak DNS or email controls
Outdated services
Risky headers

What Should Be Reviewed First in This Context?

For teams running Cambiumnetworks Epmp 1000 Firmware, the first step is to validate internet-facing assets with business relevance instead of producing a generic vulnerability list.

Forgotten subdomains
Weak DNS or email controls
Outdated services
Risky headers

Action Checklist

  1. Confirm whether Epmp 1000 Firmware is present on any public domain, subdomain, API, or admin surface.
  2. Prioritize HIGH exposure only when the affected service is reachable or business-critical.
  3. Patch, disable, isolate, or put compensating controls in front of the affected service.
  4. Re-scan after remediation to capture before-and-after evidence for technical teams or leadership.

Context-Aware Next Fixes

  1. Verify ownership of exposed assets
  2. Close unnecessary public services
  3. Remediate the highest-confidence exposed findings first, then re-scan to prove closure.

Useful evidence for this context usually maps to ISO 27001, SOC 2, vendor security reviews. ThreatPort keeps the language cautious: this is operational security evidence, not a legal certification or a guarantee that every auditor will accept a generated report without review.