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CVE-2025-32824 Siemens CVE debrief

CVE-2025-32824 affects Siemens TeleControl Server Basic and is described as an SQL injection issue in the internally used UnlockProject method. According to the advisory, an authenticated remote attacker with network access to port 8000 on a vulnerable system could bypass authorization controls, read and write the application's database, and execute code as NT AUTHORITY\NetworkService. Siemens and CISA list a vendor fix in V3.1.2.2 or later, and the advisory also 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

OT and ICS defenders running Siemens TeleControl Server Basic, especially teams responsible for perimeter access control, Windows service hardening, patch management, and any environment where port 8000 is reachable from untrusted networks.

Technical summary

The source advisory identifies a SQL injection weakness in an internal UnlockProject method in Siemens TeleControl Server Basic. The impact is high: the attacker needs authentication, but once authorized and able to reach port 8000, they may bypass authorization checks, interact with the database in read/write mode, and potentially achieve code execution under the NetworkService account. The published CVSS vector is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, which aligns with a network-reachable, low-complexity, high-impact issue. The advisory was published on 2025-04-16 and later revised on 2025-05-06 for typo fixes only.

Defensive priority

High. Treat as a priority remediation for any exposed or remotely reachable TeleControl Server Basic deployment, especially where port 8000 is not tightly restricted.

Recommended defensive actions

  • Upgrade 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 that no unauthenticated or broad network paths can reach the affected service.
  • Review logs for unexpected access to the TeleControl Server Basic interface and any abnormal database activity.
  • Apply OT network segmentation and least-privilege access controls consistent with CISA ICS recommended practices.
  • Validate that the NetworkService account and host hardening baseline are appropriate for the environment.

Evidence notes

This debrief is based only on the supplied CISA CSAF advisory and the Siemens advisory references it lists. The advisory explicitly names Siemens TeleControl Server Basic as the affected product, states that the issue is SQL injection in the UnlockProject method, and gives the impact and access conditions. The remediation guidance in the corpus is to update to V3.1.2.2 or later and to restrict port 8000 to trusted IP addresses. The source timeline shows initial publication on 2025-04-16 and a later 2025-05-06 revision that corrected typos. No KEV entry is indicated in the supplied data.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-32824 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-32824

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

  • CVE-2025-32824 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-32824

    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.