cve 2025 40815 40816 40817

This tag covers three high-severity vulnerabilities in Siemens LOGO! 8 BM devices, including SIPLUS variants. The flaws, tracked as CVE-2025-40815, CVE-2025-40816, and CVE-2025-40817, can be exploited remotely to cause buffer overflows, denial-of-service, and unauthorized changes to device configuration such as IP address and system time. Siemens has published a ProductCERT advisory with high CVSS v3.1 and v4.0 ratings. While fixes are being prepared, the advisory provides immediate mitigations for operators. This tag is relevant for industrial control system administrators, security professionals, and anyone managing Siemens LOGO! 8 BM deployments.