To enhance the security of the product, users of PT-7528/7728/7828 Series should implement the mitigations described in User Manuel v9.9 to avoid the following security issues:
SNMP
-
SNMP Agent Default Community Name (public)
-
SNMP ‘GETBULK’ Reflection DDoS
Telnet
-
Unencrypted Telnet Server
SSL Certificate
-
SSL Certificate Cannot Be Trusted
-
SSL Certificate Chain Contains RSA Keys Less Than 2048 Bits
This alert has come from: https://www.moxa.com/en/support/product-support/security-advisory/mpsa-242721-security-enhancements-for-pt-7528-7728-7828-series-–-snmp,-telnet,-and-ssl-certificate