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.

Related CVEs

CVE-2021-21889

Key Information

GHSA ID

GHSA-xmxf-9v5q-5mfw

Published

December 23, 2021 12:01 AM

Last Modified

April 20, 2022 12:01 AM

CVSS Score

9.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: July 31, 2025 6:36 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.