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CVE-2025-30003 Siemens CVE debrief

CVE-2025-30003 is a high-severity SQL injection issue in Siemens TeleControl Server Basic. According to the CISA/Siemens advisory, the flaw is reachable through the internally used UpdateProjectConnections method and can let an authenticated remote attacker bypass authorization controls, read and write the application database, and potentially execute code as NT AUTHORITY\NetworkService. The advisory notes that the attacker must be able to reach port 8000 on the affected system. Siemens lists version V3.1.2.2 or later as the fix and recommends restricting access to port 8000 to trusted IP addresses only.

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

Siemens TeleControl Server Basic operators, OT/ICS administrators, plant network defenders, and anyone responsible for systems exposing port 8000 in environments where the application is deployed.

Technical summary

The vulnerable path is an SQL injection in the internally used UpdateProjectConnections method. The attack requires authenticated access and network reachability to port 8000. Successful exploitation could bypass authorization checks, expose or modify database contents, and lead to code execution under the NetworkService account, which materially increases impact in an OT/ICS context.

Defensive priority

High. The issue is network-reachable, authenticated, and has potential for database compromise and code execution, so it should be prioritized for patching or isolation, especially where port 8000 is exposed beyond tightly controlled trust boundaries.

Recommended defensive actions

  • Upgrade Siemens TeleControl Server Basic to V3.1.2.2 or later.
  • Restrict access to port 8000 to trusted IP addresses only.
  • Verify which hosts can reach the service and remove unnecessary network exposure.
  • Review authentication controls and account usage around the affected application.
  • Follow Siemens and CISA ICS hardening guidance for segmentation and defense-in-depth.

Evidence notes

This debrief is based on the CISA CSAF advisory ICSA-25-112-01 and Siemens advisory references provided in the source corpus. The advisory was published on 2025-04-16 and revised on 2025-05-06 for typo fixes. The supplied remediation guidance states to update to V3.1.2.2 or later and to restrict access to port 8000 to trusted IP addresses only.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-30003 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-30003

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

  • CVE-2025-30003 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-30003

    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.