CVE-2019-3421: Ztw ZX297520V3 Firmware

High severity, CVSS 8.0. EPSS: 1.1% chance of exploitation in the next 30 days.

The 7520V3V1.0.0B09P27 version, and all earlier versions of ZTE product ZX297520V3 are impacted by a Command Injection vulnerability. Unauthorized users can exploit this vulnerability to control the user terminal system.

Affected products

• Ztw ZX297520V3 Firmware: up to and including 7520v3v1.0.0b09p27

Published 2019-10-31. Last modified 2026-06-17.