CVE-2021-35067: Meross MSG100 Firmware

High severity, CVSS 8.1. EPSS: 0.9% chance of exploitation in the next 30 days.

Meross MSG100 devices before 3.2.3 allow an attacker to replay the same data or similar data (e.g., an attacker who sniffs a Close message can transmit an acceptable Open message).

Affected products

• Meross MSG100 Firmware: before 3.2.3 (fixed in 3.2.3)

Published 2021-10-07. Last modified 2026-06-17.