VULNERABILITY INTELLIGENCE

CVE-2021-21967

CVSS score5.9 MEDIUM
EPSS probability0.74%
CISA KEVNot currently listed
Published2022-04-14
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • talos-cna@cisco.com: CWE-120
  • nvd@nist.gov: CWE-120

Primary references