Siemens Wibu CodeMeter Runtime

As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global).

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1. EXECUTIVE SUMMARY

• CVSS v3 8.2
• ATTENTION: Low Attack Complexity
• Vendor: Siemens
• Equipment: Wibu CodeMeter
• Vulnerability: Least Privilege Violation

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow a local user to navigate from Import License to a privileged instance of Windows Explorer.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

Siemens reports that the following products are affected:

• Siemens SIMATIC Information Server 2020: All versions
• Siemens SIMATIC WinCC OA V3.20: All versions prior to V3.20 P008
• Siemens SIMATIC Information Server 2022: All versions
• Siemens SIMATIC Information Server 2024: All versions
• Siemens SIMATIC PDM Maintenance Station V5.0: All versions
• Siemens SIMATIC Process Historian 2020: All versions
• Siemens SIMATIC Process Historian 2022: All versions
• Siemens SIMATIC Process Historian 2024: All versions
• Siemens SIMATIC WinCC OA V3.18: All versions
• Siemens SIMATIC WinCC OA V3.19: All versions prior to V3.19 P020

3.2 VULNERABILITY OVERVIEW

3.2.1 LEAST PRIVILEGE VIOLATION CWE-272

Wibu CodeMeter before 8.30a sometimes allows privilege escalation immediately after installation (before a logoff or reboot). For exploitation, there must have been an unprivileged installation with UAC, and the CodeMeter Control Center component must be installed, and the CodeMeter Control Center component must not have been restarted. In this scenario, the local user can navigate from Import License to a privileged instance of Windows Explorer.

CVE-2025-47809 has been assigned to this vulnerability. A CVSS v3.1 base score of 8.2 has been calculated; the CVSS vector string is (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing, Financial Services, Healthcare and Public Health, Transportation Systems
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Germany

3.4 RESEARCHER

Siemens reported this vulnerability to CISA.

4. MITIGATIONS

Siemens has identified the following specific workarounds and mitigations users can apply to reduce risk:

• SIMATIC WinCC OA V3.19: Update to V3.19 P020 or later version
• SIMATIC WinCC OA V3.20: Update to V3.20 P008 or later version

As a general security measure, Siemens recommends protecting network access to devices with appropriate mechanisms. To operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens' operational guidelines for industrial security and following recommendations in the product manuals.

Additional information on industrial security by Siemens can be found on the Siemens industrial security webpage

For more information see the associated Siemens security advisory SSA-331739 in HTML and CSAF.

CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability, such as:

• 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). Recognize VPNs may have vulnerabilities, should be updated to the most recent version available, and are 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. 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 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.

CISA also recommends users take the following measures to protect themselves from social engineering attacks:

• Do not click web links or open attachments in unsolicited email messages.
• Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
• Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.

No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely.

5. UPDATE HISTORY

• August 14, 2025: Initial Republication of Siemens ProductCERT SSA-331739

• Siemens