CVE-2021-40829

Published: Nov 23, 2021Modified: Jun 17, 2026

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: NVD

Description

Connections initialized by the AWS IoT Device SDK v2 for Java (versions prior to 1.4.2), Python (versions prior to 1.6.1), C++ (versions prior to 1.12.7) and Node.js (versions prior to 1.5.3) did not verify server certificate hostname during TLS handshake when overriding Certificate Authorities (CA) in their trust stores on MacOS. This issue has been addressed in aws-c-io submodule versions 0.10.5 onward. This issue affects: Amazon Web Services AWS IoT Device SDK v2 for Java versions prior to 1.4.2 on macOS. Amazon Web Services AWS IoT Device SDK v2 for Python versions prior to 1.6.1 on macOS. Amazon Web Services AWS IoT Device SDK v2 for C++ versions prior to 1.12.7 on macOS. Amazon Web Services AWS IoT Device SDK v2 for Node.js versions prior to 1.5.3 on macOS. Amazon Web Services AWS-C-IO 0.10.4 on macOS.

Affected (4)

Products: Amazon: Amazon Web Services Internet Of Things Device Software Development Kit V2

Amazon

1 product

Amazon Web Services Internet Of Things Device Software Development Kit V2

Configuration A

4 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Amazon Amazon Web Services Internet Of Things Device Software Development Kit V2	Before 1.12.7
Amazon Amazon Web Services Internet Of Things Device Software Development Kit V2	Before 1.4.2
Amazon Amazon Web Services Internet Of Things Device Software Development Kit V2	Before 1.5.3
Amazon Amazon Web Services Internet Of Things Device Software Development Kit V2	Before 1.6.1