What’s Vulnerable › Vulnerabilities

CVE-2017-20235: ProSoft Technology ICX35-HWC Authentication Bypass

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-03 · updated 2026-07-21
• Weakness: CWE-287

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.

Affected products

• ProSoft Technology ICX35-HWC Cellular Gateway: before 1.3 — fixed in 1.3

How to fix

Upgrade to a fixed version: ProSoft Technology ICX35-HWC Cellular Gateway 1.3. Check the vendor advisory for mitigations.

References

• https://assets.belden.com/m/1281cac2c9e90abf/original/Security-Bulletin-Authentication-Security-ProSoft-ICX35-BSECV-2017-09.pdf
• https://www.vulncheck.com/advisories/prosoft-technology-icx35-hwc-authentication-bypass

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