CVE-2021-21896: Lantronix Premierwave 2050 Firmware

Medium severity, CVSS 6.5. EPSS: 2.2% chance of exploitation in the next 30 days.

A directory traversal vulnerability exists in the Web Manager FsBrowseClean functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to arbitrary file deletion. An attacker can make an authenticated HTTP request to trigger this vulnerability.

Affected products

• Lantronix Premierwave 2050 Firmware: version 8.9.0.0 only

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