VULNERABILITY INTELLIGENCE

CVE-2021-21964

CVSS score7.4 HIGH
EPSS probability0.71%
CISA KEVNot currently listed
Published2022-02-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:H

Description

A denial of service vulnerability exists in the Modbus configuration functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. Specially-crafted network packets can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.

Weakness classification

  • talos-cna@cisco.com: CWE-284
  • nvd@nist.gov: CWE-306

Primary references