High severity8.1NVD Advisory· Published Feb 4, 2022· Updated Jun 17, 2026
CVE-2021-21959
CVE-2021-21959
Description
A misconfiguration exists in the MQTTS functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. This misconfiguration significantly simplifies a man-in-the-middle attack, which directly leads to control of device functionality.
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Affected products
2- Sealevel Systems, Inc./SeaConnect 370Wdescription
- Range: 1.3.34
Patches
Vulnerability mechanics
References
1- talosintelligence.com/vulnerability_reports/TALOS-2021-1388nvdExploitThird Party Advisory
News mentions
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