ACCORDING to the ICS Advisory “Siemens SIMATIC” released on 14 May 2026, Siemens SIMATIC CN 4100 is listed as affected by a suite of Linux kernel and related components vulnerabilities (CVEs such as CVE-2024-47704, CVE-2024-57924, CVE-2025-6021, CVE-2025-9230, CVE-2025-9231 and many others) that could lead to crashes, memory corruption or denial of service.
The advisory notes that all affected Siemens SIMATIC CN 4100 devices are known to be impacted and provides vendor remediations urging users to update to V5.0 or later versions. In several cases the CVSS base scores are described as MEDIUM or HIGH, with multiple entries indicating potential remote or local impacts based on the particular CVE. The publication also references a CSAF view and directs affected users to Siemens’ support page for the updated version.
Overall, Siemens recommends upgrading to V5.0 or later to mitigate the listed vulnerabilities and reduce risk to critical industrial operations. The advisory is published under the ICS Advisories umbrella and is linked to the broader industrial control system vulnerabilities topic.