Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP
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<h2>Summary</h2>
<p><strong>Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version V3.1.7 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). Siemens is preparing fixes and recommends specific mitigations for products where fixes are not or not yet available.</strong></p>
<p>The following versions of Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP are affected:</p>
<ul>
<li>SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) vers:intdot/>=3.1.7</li>
<li>SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) vers:intdot/>=3.1.7 </li>
<li>SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) vers:intdot/>=3.1.7 </li>
<li>SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) vers:intdot/>=3.1.7 </li>
<li>SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) vers:intdot/>=3.1.7 </li>
</ul>
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<th role="columnheader">Equipment</th>
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<td>v3 10</td>
<td>Siemens</td>
<td>SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)</td>
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<th role="columnheader" data-tablesaw-priority="persist">428 Vulnerabilities</th>
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<td>Access of Resource Using Incompatible Type ('Type Confusion'), Access of Uninitialized Pointer, Active Debug Code, Buffer Access with Incorrect Length Value, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'), Buffer Underwrite ('Buffer Underflow'), Concurrent Execution usi
CRITICAL
Severity & confidence
Source severitycritical
Platform severitycritical
Confidencehigh
Exploitationunknown
CVSS-
Affected
Reporting sources (1)
CISA - Cybersecurity Advisories
Timeline & provenance
Published2026-10-22T18:34:16
Last updated2026-10-25T03:23:37
Ingested2026-10-22T18:34:16
FreshnessNEAR-REAL-TIME
Threat typeexploitation
Recommended action
No recommended action published with this item - review the original source.
Next steps
- Identify affected systems in your environment.
- Apply the vendor patch or mitigation guidance.
- Review logs for indicators described in the advisory.
- Follow the affected vendor/product to track updates.
Confidence explanation
Reported by a government or cert-grade source (CISA, NCSC, NVD, ENISA, MSRC).
Source type: gov ยท Original: CISA - Cybersecurity Advisories
