How severe is CVE-2017-20235?

CVE-2017-20235 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2017-20235 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-20235?

CVE-2017-20235 affects Prosoft-technology Icx35-hwc Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-20235?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2017-20235 have an EU (EUVD) identifier?

Yes. CVE-2017-20235 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2017-18960.

When was CVE-2017-20235 published?

CVE-2017-20235 was published on 2026-04-03 and last updated on 2026-06-17.

CVE-2017-20235

CVE-2017-20235 is a critical-severity vulnerability in Prosoft-technology Icx35-hwc Firmware with a CVSS 3.x base score of 9.1. 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-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
CVSS v4: 9.3
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2017-18960
Weakness: CWE-287
Affected product: Prosoft-technology Icx35-hwc Firmware
Published: 2026-04-03
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2017-20235?: 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.
How severe is CVE-2017-20235?: CVE-2017-20235 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2017-20235 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-20235?: CVE-2017-20235 affects Prosoft-technology Icx35-hwc Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-20235?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2017-20235 have an EU (EUVD) identifier?: Yes. CVE-2017-20235 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2017-18960.
When was CVE-2017-20235 published?: CVE-2017-20235 was published on 2026-04-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:prosoft-technology:icx35-hwc_firmware:*:*:*:*:*:*:*:*

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