CVE-2021-21876

PoC —

CVSS 3.1

9.1 critical

EPSS

3%p85

Published

Dec 22, 2021 (Dec 22, 2021)

Modified

Jun 17, 2026

Description

Specially-crafted HTTP requests can lead to arbitrary command execution in PUT requests. An attacker can make authenticated HTTP requests to trigger this vulnerability.

Vendors: lantronix
Products: premierwave 2050 firmware
Weakness: CWE-78
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (2.7%)

In the news1 stories

Vulnerability Spotlight: Vulnerabilities in Lantronix PremierWave 2050 could lead to code execution, file deletion

Cisco TalosNov 15, 19:19 UTC · Nov 15, 2021Vulnerability in the wildCVE-2021-21872 CVE-2021-21873 CVE-2021-21875+18 CVEs