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CVE-2025-29905 Siemens CVE debrief

CVE-2025-29905 is a high-severity SQL injection vulnerability affecting Siemens TeleControl Server Basic. According to the CISA/Siemens advisory corpus, an authenticated remote attacker who can reach port 8000 on a vulnerable system may bypass authorization controls, read and modify the application's database, and execute code with NT AUTHORITY\NetworkService permissions. The advisory was published on 2025-04-16 and later revised on 2025-05-06 for typo fixes 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 defenders, asset owners exposing port 8000, and vulnerability management teams responsible for Windows-based industrial server deployments.

Technical summary

The advisory describes SQL injection in the internally used RestoreFromBackup method. The stated attack prerequisites are authenticated access and network reachability to port 8000 on a system running a vulnerable version of TeleControl Server Basic. Impact includes authorization bypass, database read/write access, and code execution under NT AUTHORITY\NetworkService. The provided CVSS vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, matching a high-impact remote attack path with low complexity and low privileges required.

Defensive priority

High

Recommended defensive actions

  • Update Siemens TeleControl Server Basic to V3.1.2.2 or later, as listed in the vendor remediation guidance.
  • Restrict access to port 8000 on affected systems to trusted IP addresses only.
  • Review authentication boundaries and network segmentation around TeleControl Server Basic, especially any paths that allow remote access into the service.
  • Use the Siemens and CISA advisories to confirm affected versions and remediation timing for your environment.

Evidence notes

Primary evidence comes from the CISA CSAF advisory ICSA-25-112-01 and the Siemens product security advisory referenced in the source corpus. The corpus identifies Siemens TeleControl Server Basic as the affected product and states that the issue is an SQL injection in the internal RestoreFromBackup method. The advisory text explicitly notes authenticated remote attack conditions, required access to port 8000, and potential execution as NT AUTHORITY\NetworkService. Published date: 2025-04-16; modified date: 2025-05-06, with the revision history indicating typo fixes only. No Known Exploited Vulnerabilities (KEV) entry is included in the supplied data.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-29905 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-29905

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

  • CVE-2025-29905 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-29905

    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.