PatchTheCVECVE-2017-5255: In version 3.5 and prior of Cambium Networks ePMP firmware, a lack of input sanitation for certain parameters
CVE-2017-5255 is a high-severity flaw (CVSS 8.8) affecting epmp 1000 firmware, epmp 2000 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
- EPSS top 1%: very likely to be exploited
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 74.2% (top 1%) |
| CISA exploited list | No |
| Weakness | CWE-78 |
| Published | 2017-12-20 |
| 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
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- Exploit-DB: Cambium ePMP1000 - 'get_chart' Shell via Command Injection (Metasploit)
- Metasploit: Cambium ePMP 1000 'get_chart' Command Injection (v3.1-3.5-RC7)
- Metasploit: Cambium ePMP 1000 'ping' Command Injection (up to v2.5)
- Metasploit: Cambium ePMP1000 'get_chart' Shell via Command Injection (v3.1-3.5-RC7)
- Metasploit: Cambium ePMP1000 'ping' Shell via Command Injection (up to v2.5)
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-2017-5255?
epmp 1000 firmware: upgrade to newer than 3.5; epmp 2000 firmware: upgrade to newer than 3.5. Exact commands for each OS are on this page.
Is CVE-2017-5255 being exploited?
CVE-2017-5255 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-2017-5255 affect?
CVE-2017-5255 affects epmp 1000 firmware, epmp 2000 firmware. Severity is high (CVSS 8.8). 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
How urgent is CVE-2017-5255?
Priority 61/100. High severity; EPSS top 1%: very likely to be exploited; Public exploit reference
Related CVEs
- CVE-2017-7922 HIGH 7.6 MITIGATE MITIGATE An Improper Privilege Management issue was discovered in Cambium Networks ePMP
- CVE-2017-7918 MEDIUM 6.8 MITIGATE MITIGATE An Improper Access Control issue was discovered in Cambium Networks ePMP
- CVE-2017-5258 MEDIUM 5.4 UPGRADE UPGRADE In version 3.5 and prior of Cambium Networks ePMP firmware, an attacker who knows or can guess the RW communit
- CVE-2017-5257 MEDIUM 5.4 UPGRADE UPGRADE In version 3.5 and prior of Cambium Networks ePMP firmware, an attacker who knows (or guesses) the SNMP read/w
- CVE-2017-5256 MEDIUM 5.4 UPGRADE UPGRADE In version 3.5 and prior of Cambium Networks ePMP firmware, all authenticated users have the ability to update