What’s Vulnerable › Vulnerabilities

CVE-2018-5455

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-03-05 · updated 2026-06-17
• Weakness: CWE-565

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.

Affected products

• Moxa Oncell G3110-Hspa-T Firmware: through 1.4
• Moxa Oncell G3110-Hspa Firmware: through 1.4
• Moxa Oncell G3150-Hspa-T Firmware: through 1.4
• Moxa Oncell G3150-Hspa Firmware: through 1.4

References

• https://ics-cert.us-cert.gov/advisories/ICSA-18-060-02
• https://ics-cert.us-cert.gov/advisories/ICSA-18-060-02

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