CVE-2018-5455

Name: CVE-2018-5455
Creator: NVD / NIST
Published: 2018-03-05T17:29:00.613+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.58%

Last modified Jun 17, 2026

CVE-2018-5455 is a vulnerability of currently unknown severity. A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior. The application allows a cookie parameter to consist of only digits, allowing an attacker to perform a brute force attack bypassing authentication and gaining access to device functions.. EPSS estimates a 1.58% chance of exploitation in the next 30 days.

Description

A Reliance on Cookies without Validation and Integrity Checking issue was discovered in Moxa OnCell G3100-HSPA Series version 1.4 Build 16062919 and prior. The application allows a cookie parameter to consist of only digits, allowing an attacker to perform a brute force attack bypassing authentication and gaining access to device functions.

Metrics

EPSS Probability

1.58%

72.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Moxa	Oncell G3110-Hspa Firmware	<= 1.4
Moxa	Oncell G3110-Hspa-T Firmware	<= 1.4
Moxa	Oncell G3150-Hspa Firmware	<= 1.4
Moxa	Oncell G3150-Hspa-T Firmware	<= 1.4

References

https://ics-cert.us-cert.gov/advisories/ICSA-18-060-02Patch, Third Party Advisory, US Government Resource
https://ics-cert.us-cert.gov/advisories/ICSA-18-060-02Patch, Third Party Advisory, US Government Resource

Timeline

Published: Mar 5, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-5455?

How severe is CVE-2018-5455?

Severity scoring for CVE-2018-5455 is pending analysis. The EPSS model estimates a 1.58% probability of exploitation in the next 30 days.

How do I fix CVE-2018-5455?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-5455?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST