CVE-2020-17383: Telosalliance Z/ip One Firmware

Critical severity, CVSS 9.8. EPSS: 4.3% chance of exploitation in the next 30 days.

A directory traversal vulnerability on Telos Z/IP One devices through 4.0.0r grants an unauthenticated individual root level access to the device's file system. This can be used to identify configuration settings, password hashes for built-in accounts, and the cleartext password for remote configuration of the device through the WebUI.

Affected products

• Telosalliance Z/ip One Firmware: up to and including 4.0.0r

Published 2022-01-24. Last modified 2026-06-17.