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ICS Advisories

Advisories specifically aimed at industrial control systems — from CISA ICS-CERT and directly from vendors (including Siemens, ABB, Schneider Electric, WAGO and Phoenix Contact) — including revision history (initial publication, Update A, Update B) and linked CVEs.

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Advisory data: live connection— last retrieved: 7 November 2026 at 00:32.

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SSA-566435

SSA-566435: PHP2Shell Vulnerabilities in Siemens Software Products

Siemens — AX4

Siemens ProductCERTlow

Published

23 October 2026

Last update

4 November 2026

Affected sectors

Risk evaluation

On October 21, 2026, the PHP project and security researchers disclosed two critical, unauthenticated remote code execution vulnerabilities in the core PHP language runtime known as "php2shell" (tracked as CVE-2026-109618 and CVE-2026-109619). This advisory covers the status of impact of various Siemens software products.

Mitigation summary

See the official CISA advisory for mitigating measures.

Revision history (4)
  1. Initial publication — 23 October 2026

    Publication Date

  2. Update A — 26 October 2026

    Added Valor NPI, Solid Edge and Capital to "Known Not Affected Product" list

  3. Update B — 27 October 2026

    Added Insights Hub, Simcenter Flux and Simcenter Simlab

  4. Update C — 28 October 2026

    Added Opcenter Execution Foundation, Opcenter Quality, Opcenter Intelligence, Opcenter RDnL, AX4, Supply Chain Suite, Opcenter Intra Plant Logistics, Opcenter Connect Electronics, Xcargo, Designcenter and Designcenter X

Official source: Siemens ProductCERT