CVE-2021-40829 describes a critical vulnerability in AWS IoT Device SDK v2 for Java, Python, C++, and Node.js on macOS, where connections failed to verify server certificate hostnames during TLS handshakes when custom Certificate Authorities were used. This flaw, categorized as CWE-295, could allow an attacker to intercept or manipulate communications. With a CVSS score of 8.8 (HIGH), the vulnerability has an Adjacent Network (AV:A) attack vector, low attack complexity (AC:L), and poses a significant risk of high confidentiality, integrity, and availability impact (C:H/I:H/A:H). This means an attacker on the same local network could exploit the flaw without user interaction. Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, suggesting low public awareness despite its high severity.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.4.2CPE matchmatch criteria | cpe:2.3:a:amazon:amazon_web_services_internet_of_things_device_software_development_kit_v2:*:*:*:*:*:java:*:* | ||
< 1.5.3CPE matchmatch criteria | cpe:2.3:a:amazon:amazon_web_services_internet_of_things_device_software_development_kit_v2:*:*:*:*:*:node.js:*:* | ||
< 1.6.1CPE matchmatch criteria | cpe:2.3:a:amazon:amazon_web_services_internet_of_things_device_software_development_kit_v2:*:*:*:*:*:python:*:* | ||
< 1.12.7CPE matchmatch criteria | cpe:2.3:a:amazon:amazon_web_services_internet_of_things_device_software_development_kit_v2:*:*:*:*:*:c\+\+:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:A/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.