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PatchSiren cyber security CVE debrief

CVE-2025-32841 Siemens CVE debrief

CVE-2025-32841 affects Siemens TeleControl Server Basic and is described by CISA as an SQL injection issue in the internally used UnlockGateway method. An authenticated remote attacker with access to port 8000 on a vulnerable system may be able to bypass authorization controls, read and write the application's database, and execute code as NT AUTHORITY\NetworkService.

Vendor
Siemens
Product
TeleControl Server Basic
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2025-04-16
Original CVE updated
2025-05-06
Advisory published
2025-04-16
Advisory updated
2025-05-06

Who should care

Organizations running Siemens TeleControl Server Basic, especially OT/ICS teams, Windows administrators, network security teams, and anyone exposing port 8000 on systems running the product.

Technical summary

The advisory states that the affected application is vulnerable to SQL injection through the internally used UnlockGateway method. The attack requires an authenticated remote attacker and access to port 8000 on a system running a vulnerable version. Successful exploitation can bypass authorization controls, manipulate the application's database, and execute code with NT AUTHORITY\NetworkService permissions.

Defensive priority

High — prioritize remediation on any exposed TeleControl Server Basic deployment, especially where port 8000 is reachable from non-trusted networks.

Recommended defensive actions

  • Update Siemens TeleControl Server Basic to V3.1.2.2 or later.
  • Restrict access to port 8000 on affected systems to trusted IP addresses only.
  • Verify whether any management or service ports for TeleControl Server Basic are exposed beyond the intended OT administration network.
  • Review logs for unexpected authenticated access or unusual database activity associated with the application.
  • Follow Siemens and CISA industrial control system hardening guidance for network segmentation and defense in depth.

Evidence notes

This debrief is based on the CISA CSAF advisory ICSA-25-112-01 for CVE-2025-32841 and its linked Siemens product security advisory. The supplied corpus explicitly identifies Siemens TeleControl Server Basic, the UnlockGateway SQL injection condition, the requirement for authenticated remote access to port 8000, the impact on authorization and database access, and code execution as NT AUTHORITY\NetworkService. The advisory revision history indicates the 2025-05-06 update was a typo fix only.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-32841 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-32841

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-32841 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-32841

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-112-01.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/csaf/ssa-443402.json

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/html/ssa-443402.html

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-25-112-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.