Siemens SIMATIC and SICAM Products Vulnerable to Trace-File Code Injection and Other Flaws
CISA published an ICS advisory warning that multiple Siemens SIMATIC controllers do not properly sanitize the contents of imported trace files, enabling code injection if an attacker can socially engineer a legitimate user into importing a specially crafted trace file. The affected product set includes a broad range of SIMATIC devices, including SIMATIC Drive Controller CPU 1504D/1507D TF, multiple SIMATIC ET 200SP CPU variants (including fail-safe models), and SIMATIC S7-1500 CPUs, among others.
CERT-FR also issued an advisory covering multiple vulnerabilities in Siemens products, listing impacts that include remote code execution, denial of service, and indirect code injection (XSS), and enumerating overlapping affected systems such as the same SIMATIC Drive Controller and SIMATIC ET 200SP families. CERT-FR explicitly references CVE-2025-40943 for several of these SIMATIC devices and additionally notes other Siemens components (e.g., SICAM SIAPP SDK versions prior to 2.1.7), indicating the Siemens security updates/mitigations span more than one product line and vulnerability class beyond the trace-file injection issue highlighted by CISA.
Timeline
Mar 12, 2026
CISA publishes ICS advisory on Siemens SIMATIC trace file code injection flaw
On 2026-03-12, CISA published advisory ICSA-26-071-04 describing a Siemens SIMATIC vulnerability in which improperly sanitized trace file contents could allow code injection if a user imports a specially crafted file. The advisory listed numerous affected SIMATIC controller, PLC, software controller, and SIPLUS variants as known affected.
Mar 10, 2026
CERT-FR publishes advisory on multiple Siemens product vulnerabilities
On 2026-03-10, CERT-FR published an alert summarizing multiple vulnerabilities in Siemens products such as SIMATIC Drive Controller, SIMATIC ET 200SP, and SIMATIC S7-1500 families. The notice directed users to Siemens bulletins for remediation and noted varying affected-version ranges across products.
Mar 10, 2026
Siemens issues security bulletins for multiple SIMATIC vulnerabilities
On 2026-03-10, Siemens published security bulletins covering multiple vulnerabilities affecting SIMATIC and related products, including issues that could lead to remote code execution, data integrity impact, denial of service, and cross-site scripting. The advisories referenced fixes for affected versions and listed CVEs including CVE-2025-40943 and CVE-2026-25569 through CVE-2026-25605.
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