CVE-2021-21889

CRITICAL

Lantronix PremierWave 2050 Firmware 8.9.0.0R4 - Authenticated Stack-based Buffer Overflow via Web Manager Ping

Title source: llm
STIX 2.1

Description

A stack-based buffer overflow vulnerability exists in the Web Manager Ping functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to remote code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

References (1)

Core 1
Core References
Exploit, Technical Description, Third Party Advisory x_refsource_misc
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1333

Scores

CVSS v3 9.9
EPSS 0.0284
EPSS Percentile 84.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Details

CWE
CWE-121 CWE-787
Status published
Products (1)
lantronix/premierwave_2050_firmware 8.9.0.0 r4
Published Dec 22, 2021
Tracked Since Feb 18, 2026