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CVE-2017-20235

Prosoft-technology Icx35-hwc Firmware authentication bypass

9.1 CRITICALEPSS 0.45%
  1. Published3 Apr 2026

Description

ProSoft Technology ICX35-HWC version 1.3 and prior cellular gateways contain an authentication bypass vulnerability in the web user interface that allows unauthenticated attackers to gain access to administrative functions without valid credentials. Attackers can bypass the authentication mechanism in affected firmware versions to obtain full administrative access to device configuration and settings.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Prosoft-technology Icx35-hwc Firmware< 1.3

Remediation

Fixed in
Prosoft-technology Icx35-hwc Firmware≥ 1.3

References

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Frequently asked

Is CVE-2017-20235 being actively exploited?

CVE-2017-20235 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.45%.

How severe is CVE-2017-20235?

CVE-2017-20235 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.45% probability of exploitation.

Which products are affected by CVE-2017-20235?

Affected products include Prosoft-technology Icx35-hwc Firmware.

How do I fix CVE-2017-20235?

Upgrade affected software to a fixed version, for example Prosoft-technology Icx35-hwc Firmware 1.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2017-20235 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.