AUGUST 4, 2026
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Case File

CVE-2021-21959

HIGH · CVSS 8.1 EPSS 0.84%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-02-04 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.1. See the original NVD description below for full technical details.

CVE
CVE-2021-21959
Severity
HIGH
CVSS
8.1
EPSS
0.84%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)