High severity7.2NVD Advisory· Published Dec 22, 2021· Updated Jun 17, 2026
CVE-2021-21895
CVE-2021-21895
Description
A directory traversal vulnerability exists in the Web Manager FsTFtp functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to FsTFtp file overwrite. An attacker can make an authenticated HTTP request to trigger this vulnerability.
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Affected products
1- Range: 8.9.0.0R4
Patches
Vulnerability mechanics
References
1- talosintelligence.com/vulnerability_reports/TALOS-2021-1337nvdExploitTechnical DescriptionThird Party Advisory
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