How severe is CVE-2017-5256?

CVE-2017-5256 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-5256 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-5256?

CVE-2017-5256 primarily affects Cambiumnetworks Epmp 1000 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-5256?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-5256 published?

CVE-2017-5256 was published on 2017-12-20 and last updated on 2026-06-17.

CVE-2017-5256

CVE-2017-5256 is a medium-severity vulnerability in Cambiumnetworks Epmp 1000 Firmware with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Cambiumnetworks Epmp 1000 Firmware
Published: 2017-12-20
Last modified: 2026-06-17

Description

In version 3.5 and prior of Cambium Networks ePMP firmware, all authenticated users have the ability to update the Device Name and System Description fields in the web administration console, and those fields are vulnerable to persistent cross-site scripting (XSS) injection.

Frequently asked questions

What is CVE-2017-5256?: In version 3.5 and prior of Cambium Networks ePMP firmware, all authenticated users have the ability to update the Device Name and System Description fields in the web administration console, and those fields are vulnerable to persistent cross-site scripting (XSS) injection.
How severe is CVE-2017-5256?: CVE-2017-5256 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-5256 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-5256?: CVE-2017-5256 primarily affects Cambiumnetworks Epmp 1000 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-5256?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-5256 published?: CVE-2017-5256 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 (2)

cpe:2.3:o:cambiumnetworks:epmp_1000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:cambiumnetworks:epmp_2000_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Cambiumnetworks Epmp 1000 Firmware

CVE-2017-5255 — 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…
CVE-2017-5254 — High (CVSS 8.8): In version 3.5 and prior of Cambium Networks ePMP firmware, the non-administrative users 'installer' and 'home' have…
CVE-2017-5258 — Medium (CVSS 5.4): In version 3.5 and prior of Cambium Networks ePMP firmware, an attacker who knows or can guess the RW community string…
CVE-2017-5257 — Medium (CVSS 5.4): In version 3.5 and prior of Cambium Networks ePMP firmware, an attacker who knows (or guesses) the SNMP read/write (RW)…

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