Siemens has just released a firmware update for the 7KT PAC1200 Siemens smart meters that addresses a critical vulnerability. The flaw tracked as CVE-2017-9944 was discovered by the researcher Maxim Rupp. The vulnerability allows a remote attacker to bypass authentication using an alternate path or channel, exploiting the issue it is possible to access the web interface and perform administrative operations. Siemens urges its customers to update their devices to version 2.03 and to protect network access to the web server with appropriate mechanisms.”]
Source: http://securityaffairs.co/wordpress/63936/hacking/flaw-siemens-smart-meters.html