CVE-2021-21968 HIGH

CVE-2021-21968

Vendor N/A
Product Sealevel
Weakness CWE-20 · Input validation
Published February 4, 2022
Last update April 15, 2025
View on NVD All CVEs

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A file 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 arbitrary file overwrite. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.

Key dates

02Disclosure timeline

February 4, 2022 CVE published
April 15, 2025 Record updated