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% (37th 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 2026-07-21.

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% (37th 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: 2026-07-21

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% (37th 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 2026-07-21.

References

Affected products (1)

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

More vulnerabilities in Prosoft-technology Icx35-hwc Firmware

CVE-2017-20236 — Critical (CVSS 9.8): ProSoft Technology ICX35-HWC versions 1.3 and prior cellular gateways contain an input validation vulnerability in the…

All CVEs affecting Prosoft-technology Icx35-hwc Firmware →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-101077 — Critical (CVSS 10.0): A flaw has been found in Netcore NR289-GE 1.4.5102. This impacts the function process_request of the component boa_temp…
CVE-2026-100886 — Critical (CVSS 10.0): A vulnerability was identified in Seetong T8108, T8108P, T8116 and T8232 4.6.1.4-build202604241011. The affected…
CVE-2026-77244 — Critical (CVSS 10.0): MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0,…
CVE-2026-94493 — Critical (CVSS 10.0): A vulnerability was detected in Gigatech PDV5701 1.0.31_240305_112640. This issue affects some unknown processing of…
CVE-2026-83099 — Critical (CVSS 10.0): Vulnerability in the Oracle Forms product of Oracle Fusion Middleware (component: Forms Services, C/S, Charmode).…
CVE-2026-83059 — Critical (CVSS 10.0): Vulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server).…

Browse all CWE-287 (Improper Authentication) vulnerabilities →