CVE-2021-20732

Severity: medium (CVSS 5.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-06-09 · updated 2026-06-17
Weakness: CWE-295

Description

The ATOM (ATOM - Smart life App for Android versions prior to 1.8.1 and ATOM - Smart life App for iOS versions prior to 1.8.2) does not verify server certificate properly, which allows man-in-the-middle attackers to eavesdrop on encrypted communication via a crafted certificate.

Affected products

Atomtech Smart Life: before 1.8.1; before 1.8.2 — fixed in 1.8.1, 1.8.2

How to fix

Upgrade to a fixed version: Atomtech Smart Life 1.8.1, 1.8.2. Check the vendor advisory for mitigations.

References

https://jvn.jp/en/jp/JVN64064138/index.html
https://www.atomtech.co.jp/news/news/2055/
https://jvn.jp/en/jp/JVN64064138/index.html
https://www.atomtech.co.jp/news/news/2055/

Get alerted when CVE-2021-20732 or the next vulnerability affects your stack