CVE-2021-21879: Lantronix Premierwave 2050

High severity, CVSS 8.8. EPSS: 3.7% chance of exploitation in the next 30 days.

A directory traversal vulnerability exists in the Web Manager File Upload functionality of Lantronix PremierWave 2050 8.9.0.0R4. A specially-crafted HTTP request can lead to arbitrary file overwrite. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Affected products

• Lantronix Premierwave 2050: version 8.9.0.0 only

Published 2021-12-22. Last modified 2026-06-17.