CVE-2021-21887

CRITICAL

Lantronix PremierWave 2050 Firmware 8.9.0.0R4 - Authenticated Stack-based Buffer Overflow in Web Manager SslGenerateCSR

Title source: llm

Description

A stack-based buffer overflow vulnerability exists in the Web Manager SslGenerateCSR 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-2021-1331

Scores

CVSS v3 9.1

EPSS 0.0299

EPSS Percentile 85.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/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