Siemens RUGGEDCOM APE1808
Monitor7.5ICS-CERT ICSA-25-162-02Jun 10, 2025
Attack VectorNetwork
Auth RequiredNone
ComplexityLow
User InteractionNone needed
Summary
Siemens RUGGEDCOM APE1808 is affected by vulnerabilities inherited from Palo Alto Networks PAN-OS code. These vulnerabilities can be exploited remotely without authentication to cause denial of service, potentially disrupting network availability of the appliance. Siemens is preparing fixes. The appliance may be used as a VPN gateway for remote access to industrial control systems, making availability critical for operational continuity.
What this means
What could happen
The RUGGEDCOM APE1808 appliance could become unavailable to legitimate traffic if exploited, disrupting remote access for operations staff and potentially interrupting VPN-based monitoring and control of industrial networks.
Who's at risk
Water authorities and municipal utilities using Siemens RUGGEDCOM APE1808 appliances for remote VPN access to PLCs, SCADA systems, and industrial networks should be aware. Any organization relying on this device for remote management of critical control systems is affected.
How it could be exploited
An attacker with network access to the APE1808's web interface can exploit a vulnerability in PAN-OS (inherited from Palo Alto Networks code) to cause a denial of service condition. The exploit requires no authentication or user interaction and can be delivered remotely over the network.
Prerequisites
- Network access to the RUGGEDCOM APE1808 web interface or VPN service port
- No authentication required
- Ability to send crafted network requests to trigger the vulnerability
Remotely exploitableNo authentication requiredLow complexity attackAll versions vulnerableNo patch currently available
Exploitability
Moderate exploit probability (EPSS 3.5%)
Affected products (1)
ProductAffected VersionsFix Status
RUGGEDCOM APE1808All versionsNo fix (EOL)
Remediation & Mitigation
0/4
Do now
0/2WORKAROUNDDisable Clientless VPN feature on RUGGEDCOM APE1808 immediately if not in use
HARDENINGRestrict network access to the APE1808 management interface and VPN ports using firewall rules; do not expose to the internet
Schedule — requires maintenance window
0/1Patching may require device reboot — plan for process interruption
HOTFIXContact Siemens customer support to obtain and schedule patching of RUGGEDCOM APE1808
Mitigations - no patch available
0/1RUGGEDCOM APE1808 has reached End of Life. The vendor will not release a patch. Apply the following compensating controls:
HARDENINGImplement network segmentation to isolate the APE1808 from business networks and limit access to authorized operational staff only
CVEs (8)
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