CVE-2017-5255

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
8.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 75%
CISA-KEV: Not listedEPSS: 75%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
99.4%
KEV
Not listed

Published

December 20, 2017

Last Modified

May 13, 2026

References (4)

Data Freshness Timeline

(refreshed 6× in last 7d / 26× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 13:42 UTCEPSS rescore
  2. 2026-07-05 02:27 UTCEPSS rescore
  3. 2026-07-02 16:54 UTCEPSS rescore
  4. 2026-07-01 15:02 UTCEPSS rescore
  5. 2026-06-30 23:19 UTCEPSS rescore
  6. 2026-06-30 23:19 UTCEPSS rescore
  7. 2026-06-29 14:03 UTCEPSS rescore
  8. 2026-06-28 14:04 UTCEPSS rescore
  9. 2026-06-27 03:06 UTCEPSS rescore
  10. 2026-06-27 03:05 UTCEPSS rescore
  11. 2026-06-25 13:47 UTCEPSS rescore
  12. 2026-06-24 14:02 UTCEPSS rescore
  13. 2026-06-24 14:02 UTCEPSS rescore
  14. 2026-06-23 21:30 UTCEPSS rescore
  15. 2026-06-21 01:57 UTCEPSS rescore
  16. 2026-06-21 01:57 UTCEPSS rescore
  17. 2026-06-19 19:23 UTCEPSS rescore
  18. 2026-06-19 19:23 UTCEPSS rescore
  19. 2026-06-17 17:50 UTCEPSS rescore
  20. 2026-06-15 17:45 UTCEPSS rescore
  21. 2026-06-14 23:14 UTCEPSS rescore
  22. 2026-06-13 22:57 UTCEPSS rescore
  23. 2026-06-12 23:09 UTCEPSS rescore
  24. 2026-06-10 22:15 UTCEPSS rescore
  25. 2026-06-08 14:14 UTCEPSS rescore
Show 25 more
  1. 2026-06-08 14:14 UTCEPSS rescore
  2. 2026-06-05 06:08 UTCEPSS rescore
  3. 2026-06-05 06:08 UTCEPSS rescore
  4. 2026-06-02 20:11 UTCEPSS rescore
  5. 2026-06-02 20:11 UTCEPSS rescore
  6. 2026-06-01 13:49 UTCEPSS rescore
  7. 2026-05-31 00:14 UTCEPSS rescore
  8. 2026-05-31 00:14 UTCEPSS rescore
  9. 2026-05-29 13:41 UTCEPSS rescore
  10. 2026-05-28 13:42 UTCEPSS rescore
  11. 2026-05-28 13:42 UTCEPSS rescore
  12. 2026-05-27 13:38 UTCEPSS rescore
  13. 2026-05-27 13:38 UTCEPSS rescore
  14. 2026-05-22 21:15 UTCEPSS rescore
  15. 2026-05-22 21:15 UTCEPSS rescore
  16. 2026-05-22 21:15 UTCEPSS rescore
  17. 2026-05-22 21:15 UTCEPSS rescore
  18. 2026-05-22 21:15 UTCEPSS rescore
  19. 2026-05-22 07:04 UTCEG score recompute
  20. 2026-05-22 07:04 UTCGHSA enrichment
  21. 2026-05-21 22:40 UTCEPSS rescore
  22. 2026-05-20 22:37 UTCEPSS rescore
  23. 2026-05-20 22:37 UTCEPSS rescore
  24. 2026-05-20 22:37 UTCEPSS rescore
  25. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(5 references)

Working exploit code is in the public domain (4 Metasploit modules) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-43413✓ verified
    First seen Jan 1, 2018

    Cambium ePMP1000 - 'get_chart' Shell via Command Injection (Metasploit)

    Open source ↗
  • Metasploitexploit/unix/http/epmp1000_get_chart_cmd_shell✓ verified
    First seen Dec 18, 2017

    Cambium ePMP1000 'get_chart' Shell via Command Injection (v3.1-3.5-RC7)

    Open source ↗
  • Metasploitauxiliary/scanner/http/epmp1000_ping_cmd_exec✓ verified
    First seen Jan 1, 2017

    Cambium ePMP 1000 'ping' Command Injection (up to v2.5)

    Open source ↗
  • Metasploitauxiliary/scanner/http/epmp1000_get_chart_cmd_exec✓ verified
    First seen Jan 1, 2017

    Cambium ePMP 1000 'get_chart' Command Injection (v3.1-3.5-RC7)

    Open source ↗
  • Metasploitexploit/unix/http/epmp1000_ping_cmd_shell✓ verified
    First seen Nov 28, 2015

    Cambium ePMP1000 'ping' Shell via Command Injection (up to v2.5)

    Open source ↗

Frequently asked(5)

What is CVE-2017-5255?
CVE-2017-5255 is a high vulnerability published on December 20, 2017. 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…
When was CVE-2017-5255 disclosed?
CVE-2017-5255 was first published in the National Vulnerability Database on December 20, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-5255 actively exploited?
CVE-2017-5255 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-5255?
CVE-2017-5255 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2017-5255?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-5255, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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