Siemens Warns of Eight Unpatched SIMATIC S7-1500 Web Server Flaws Rated Up to CVSS 9.4 Vulnerability Report Siemens Warns of Eight Unpatched SIMATIC S7-1500 Web Server Flaws Rated Up to CVSS 9.4 Do Son October 13, 2026 0 TL;DR Siemens disclosed eight Siemens S7-1500 vulnerabilities in the PLC web server on October 13, 2026. Three... Read More Read more about Siemens Warns of Eight Unpatched SIMATIC S7-1500 Web Server Flaws Rated Up to CVSS 9.4