CVE-2021-21971 Information

Description

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

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1406 https://talosintelligence.com/vulnerability_reports/TALOS-2021-1397

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.9