CVE-2020-14030: Ozeki NG Sms Gateway

High severity, CVSS 7.2. EPSS: 1.8% chance of exploitation in the next 30 days.

An issue was discovered in Ozeki NG SMS Gateway through 4.17.6. It stores SMS messages in .NET serialized format on the filesystem. By generating (and writing to the disk) malicious .NET serialized files, an attacker can trick the product into deserializing them, resulting in arbitrary code execution.

Affected products

• Ozeki Ozeki NG Sms Gateway: up to and including 4.17.6

Published 2020-09-30. Last modified 2026-06-17.