SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-3774

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.

MEDIUM 6.5EPSS 0.73%

Does this matter?

Lower severity and a low EPSS score (0.73%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS
0.73% probability · 52th percentile
CISA KEV
Not listed
Weakness
CWE-319
Affected
meross/mss550x firmware
Source
cve-coordination@incibe.es

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.