CVE-2021-21967 MEDIUM

CVE-2021-21967

Vendor Sealevel Systems, Inc.
Product SeaConnect 370W
Weakness CWE-120
Published April 14, 2022
Last update April 15, 2025

CVSS base score

6.5/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

What the vulnerability does

01Description

An out-of-bounds write vulnerability exists in the OTA update task functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted MQTT payload can lead to denial of service. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.

Key dates

02Disclosure timeline

April 14, 2022 CVE published
April 15, 2025 Record updated