Critical severity9.9NVD Advisory· Published Dec 22, 2021· Updated Jun 17, 2026
CVE-2021-21889
CVE-2021-21889
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.
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Affected products
2- Lantronix/PremierWave 2050description
- Range: = 8.9.0.0R4
Patches
Vulnerability mechanics
References
1- talosintelligence.com/vulnerability_reports/TALOS-2021-1333nvdExploitTechnical DescriptionThird Party Advisory
News mentions
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