PatchSiren cyber security CVE debrief

CVE-2025-40888 Siemens CVE debrief

A SQL injection vulnerability exists in the CLI functionality of Siemens RUGGEDCOM APE1808. An authenticated attacker with limited privileges can execute arbitrary SELECT statements against the backend database, potentially exposing unauthorized data. The vulnerability stems from improper input validation on a CLI parameter. CVSS 3.1 score is 5.3 (Medium), with network attack vector, high attack complexity, low privileges required, and high confidentiality impact. No integrity or availability impact is indicated. The vulnerability was published on 2025-08-12 and last modified on 2026-01-14. CISA republished the Siemens ProductCERT advisory on 2026-01-14.

Vendor: Siemens
Product: RUGGEDCOM APE1808
CVSS: MEDIUM 5.3
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 in critical infrastructure sectors. Security teams responsible for OT/ICS environments, database administrators managing backend systems for industrial applications, and network engineers configuring RUGGEDCOM devices should prioritize assessment and remediation.

Technical summary

The vulnerability exists in the CLI functionality of the RUGGEDCOM APE1808 due to improper validation of an input parameter. An authenticated user with limited privileges can inject SQL commands to execute arbitrary SELECT statements against the web application's database management system. This is a read-only data exposure vulnerability with no indicated integrity or availability impact. The attack requires network access and high complexity to exploit.

Defensive priority

medium

Recommended defensive actions

Apply vendor fix: Upgrade Nozomi Guardian / CMC to V25.4.0. Use CLI for upgrade as Web GUI may have errors; contact customer support for patch information
Implement network segmentation: Use internal firewall features to limit access to the web management interface
Review and minimize access: Audit all accounts with web management interface access and remove unnecessary accounts
Monitor for anomalous database queries: Implement logging and alerting for unexpected SELECT statement patterns from CLI sessions
Apply defense-in-depth: Follow CISA ICS recommended practices for industrial control system security

Evidence notes

Source: CISA CSAF advisory ICSA-25-226-09, republished from Siemens ProductCERT SSA-978177. CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N. Affected product: RUGGEDCOM APE1808.

Official resources

2025-08-12