VULNERABILITY INTELLIGENCE

CVE-2021-21879

CVSS score8.8 HIGH
EPSS probability3.78%
CISA KEVNot currently listed
Published2021-12-22
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

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.

Weakness classification

  • talos-cna@cisco.com: CWE-22
  • nvd@nist.gov: CWE-22

Primary references