Siemens Building Automation and Energy Products

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. As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines, and to follow the recommendations in the product manuals. Siemens is actively monitoring the situation and assessing the implications of these vulnerabilities on our portfolio. Because this evaluation is ongoing, our findings are subject to change as new technical details and vendor updates emerge. We will publish updated findings, guidance, and remediation recommendations as soon as they become available. Siemens has released new versions for several affected products and recommends to update to the latest versions. Siemens is preparing further fixes and recommends mitigations for products where fixes are not or not yet available.

The following versions of Siemens Building Automation and Energy Products are affected:

AMIS TS vers:all/* (CVE-2026-109618, CVE-2026-109619)

blueplanet 360 NX3 M6 WM OD IISX vers:all/* (CVE-2026-109618, CVE-2026-109619)

blueplanet 360 NX3 M6 WM OD IISX - S vers:all/* (CVE-2026-109618, CVE-2026-109619)

Energy Engage V2.0SP9 vers:all/* (CVE-2026-109618, CVE-2026-109619)

Energy Engage V3.1SP1 vers:all/* (CVE-2026-109618, CVE-2026-109619)

Heliox Rapid vers:all/* ()Local Monitoring bt-monitoring-vm vers:intdot/<20261103 (CVE-2026-109618, CVE-2026-109619)

Spectrum Power 3 vers:all/* (CVE-2026-109619)

Spectrum Power 4 vers:all/*, vers:all/*, vers:all/* (CVE-2026-109618, CVE-2026-109619, CVE-2026-109618, CVE-2026-109619, CVE-2026-109618, CVE-2026-109619)

Spectrum Power 7 vers:all/* (CVE-2026-109618, CVE-2026-109619)

Spectrum Power TG vers:all/* (CVE-2026-109618, CVE-2026-109619)

Critical Infrastructure Sectors: Energy

Countries/Areas Deployed: Worldwide

Company Headquarters Location: Germany

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

No fix planned Currently no fix is planned

Product Status: known_affected, known_not_affected

Vendor fix Upgrade PHP version to V8.1.34 release 6

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

Vendor fix Update to V20261103 or later version

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

Vendor fix Red Hat released a PHP security patch for RHEL 8 and 9

Product Status: known_affected, known_not_affected

Vendor fix Upgrade PHP version to V8.5.12

Relevant CWE: CWE-416 Use After Free

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

No fix planned Currently no fix is planned

Product Status: known_affected, known_not_affected

Vendor fix Upgrade PHP version to V8.1.34 release 6

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

Vendor fix Update to V20261103 or later version

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

Vendor fix Red Hat released a PHP security patch for RHEL 8 and 9

Product Status: known_affected, known_not_affected

Vendor fix Upgrade PHP version to V8.5.12

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

No fix planned Currently no fix is planned

Product Status: known_affected, known_not_affected

Vendor fix Upgrade PHP version to V8.1.34 release 6

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

Vendor fix Update to V20261103 or later version

Product Status: known_affected, known_not_affected

Vendor fix Red Hat released a PHP security patch for RHEL 7

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

None available Currently no fix is available

Product Status: known_affected, known_not_affected

Vendor fix Red Hat released a PHP security patch for RHEL 8 and 9

Product Status: known_affected, known_not_affected

Vendor fix Upgrade PHP version to V8.5.12

Relevant CWE: CWE-416 Use After Free

Siemens ProductCERT reported these vulnerabilities to CISA.

General Recommendations

Operators of critical power systems (e.g. TSOs or DSOs) worldwide are usually required by regulations to build resilience into the power grids by applying multi-level redundant secondary protection schemes. It is therefore recommended that the operators check whether appropriate resilient protection measures are in place. The risk of cyber incidents impacting the grid's reliability can thus be minimized by virtue of the grid design. Siemens strongly recommends applying the provided security updates using the corresponding tooling and documented procedures made available with the product. If supported by the product, an automated means to apply the security updates across multiple product instances may be used. Siemens strongly recommends prior validation of any security update before being applied, and supervision by trained staff of the update process in the target environment. As a general security measure Siemens strongly recommends protecting network access with appropriate mechanisms (e.g. firewalls, segmentation, VPN). It is advised to configure the environment according to our operational guidelines in order to run the devices in a protected IT environment. Recommended security guidelines can be found at:

For further inquiries on security vulnerabilities in Siemens products and solutions, please the Siemens ProductCERT:

The use of Siemens Security Advisories is subject to the terms and conditions listed on: .

Recommended Practices

CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities.

Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet .

Locate control system networks and remote devices behind firewalls and isolating them from business networks.

When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.

CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics . Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies .

CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets .

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies .

Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

Advisory Conversion Disclaimer

This ICSA is a verbatim republication of Siemens ProductCERT SSA-166980 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please Siemens ProductCERT directly for any questions regarding this advisory.

Initial Release Date: 2026-10-26

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