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PatchSiren cyber security CVE debrief

CVE-2025-40886 Siemens CVE debrief

A SQL injection vulnerability exists in the Alert functionality of Siemens RUGGEDCOM APE1808. An authenticated attacker with limited privileges can execute arbitrary SQL statements against the backend database, potentially leading to unauthorized data exposure, data modification, or availability impacts. The vulnerability stems from improper input validation on an Alert-related parameter. This issue was disclosed on August 12, 2025, and carries a HIGH severity CVSS 7.5 score. A vendor fix is available requiring upgrade to Nozomi Guardian/CMC V25.4.0, with CLI-based upgrade recommended due to potential Web GUI errors during the process.

Vendor
Siemens
Product
RUGGEDCOM APE1808
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2025-08-12
Original CVE updated
2026-01-14
Advisory published
2025-08-12
Advisory updated
2026-01-14

Who should care

Organizations operating Siemens RUGGEDCOM APE1808 industrial networking equipment, particularly those using Nozomi Guardian/CMC for monitoring. Critical infrastructure operators in energy, transportation, and manufacturing sectors where RUGGEDCOM devices are deployed. Security teams responsible for OT/ICS asset protection and database integrity.

Technical summary

The Alert functionality in Siemens RUGGEDCOM APE1808 fails to properly validate an input parameter, enabling SQL injection. An authenticated user with limited privileges can inject arbitrary SQL into database queries. This allows read access to unauthorized data, modification of database structure/content, and potential availability impacts on the DBMS. Network attack vector with high attack complexity; requires low-privileged authenticated access. CVSS 3.1: 7.5 (HIGH).

Defensive priority

HIGH

Recommended defensive actions

  • Apply vendor fix: upgrade Nozomi Guardian/CMC to V25.4.0 using CLI (Web GUI may error during upgrade). Contact Siemens customer support for patch and update information.
  • Restrict network access to the web management interface using internal firewall features.
  • Review and audit all accounts with web management interface access; remove unnecessary accounts.
  • Monitor database query logs for anomalous SQL execution patterns from authenticated sessions.
  • Implement defense-in-depth controls per CISA ICS recommended practices for industrial control systems.

Evidence notes

CVE published 2025-08-12; modified 2026-01-14. CISA CSAF advisory ICSA-25-226-09 republished Siemens ProductCERT SSA-978177. Affected product: RUGGEDCOM APE1808. CVSS 3.1 vector: AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-40886 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-40886

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

  • CVE-2025-40886 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-40886

    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-25-226-09.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/csaf/ssa-978177.json

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/html/ssa-978177.html

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-25-226-09

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/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://www.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.