CVE-2021-21961 CRITICAL

CVE-2021-21961

Vendor N/A
Product Sealevel
Weakness CWE-121
Published February 4, 2022
Last update April 15, 2025
View on NVD All CVEs

CVSS base score

10.0/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A stack-based buffer overflow vulnerability exists in the NBNS functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. A specially-crafted network packet can lead to remote code execution. An attacker can send a malicious packet to trigger this vulnerability.

Key dates

02Disclosure timeline

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