News·Industrial & OTHighSiemens SIMATIC S7-1500 PLC Vulnerability Enables Unauthenticated PROFINET DCP Network Parameter Tampering (CVE-2026-79880)Siemens issues urgent firmware updates for SIMATIC S7-1500 industrial controllers to remediate an unauthenticated PROFINET DCP configuration tampering vulnerability.CST Newsroom13 Oct 20268 min read