Vulnerability · Published Nov 5, 2021 · Assigned by INCIBE
CVE-2021-3774Meross MSS550X Missing Encryption of Sensitive Data
High 7.4
In plain English
A high-severity security flaw in Meross Smart Wi-Fi 2 Way Wall Switch from Meross. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).
Severity (CVSS 3.1)7.4High
Exploit odds (30 days)0.7%top 45.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Meross Smart Wi-Fi 2 Way Wall Switch (MSS550X), on its 3.1.3 version and before, creates an open Wi-Fi Access Point without the required security measures in its initial setup. This could allow a remote attacker to obtain the Wi-Fi SSID as well as the password configured by the user from Meross app via Http/JSON plain request.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Meross | Meross Smart Wi-Fi 2 Way Wall Switch | 0 – through 3.1.3 |
Weakness: CWE-319 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N