Republished vendor advisory. This ICSA is a verbatim republication of Siemens ProductCERT SSA-345750 from a direct conversion of their 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…
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 to protect 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.
Additional Resources: For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Credit: Siemens ProductCERT
From CISA's machine-readable CSAF 2.0 advisory (JSON).
| CVE | Weakness | CVSS v3 | Details |
|---|---|---|---|
| CVE-2025-40585 | CWE-276 Incorrect Default Permissions | 9.9 Critical |
CVE-2025-40585 Affected solutions using G5DFR contain default credentials. This could allow an attacker to gain control of G5DFR component and tamper with outputs from the device. Vendor fix: Use the G5DFR web interface to change the default usernames, passwords and permission levels. Contact customer support for further assistance Affected, fixed & timelineAffected:
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Scores and weakness types are as CISA or the republishing vendor stated them in this advisory; the linked CVE pages carry the independently enriched CVSS and SSVC assessments.
No coverage found in monitored research blogs or news feeds.
| CVE | CVSS | Affected |
|---|---|---|
| CVE-2025-40585 | 9.9 Critical | Siemens Energy Services A vulnerability has been identified in Energy Services (All versions with G5DFR). Affected solutions using G5DFR contain default credentials. This co… |
Named by the advisory itself. Each CVE links to its tracked detail page.
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