CVE-2021-21879

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-12-22 · updated 2026-06-17
Weakness: CWE-22

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.

Affected products

LANTRONIX Premierwave 2050: 8.9.0.0-r4

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1323
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1323

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