iba Systems ibaPDA
Act Now9.8ICS-CERT ICSA-26-027-01Jan 27, 2026
Attack VectorNetwork
Auth RequiredNone
ComplexityLow
User InteractionNone needed
Summary
Unauthorized file system access vulnerability in iba Systems ibaPDA version 8.12.0. Due to improper file access control (CWE-732), an attacker with network access to the ibaPDA Server can read, modify, or delete files on the affected system without authentication. This could compromise process data integrity, alter system configuration, or disrupt data acquisition operations. iba Systems recommends updating to version 8.12.1 or later. Interim mitigations include restricting server access to localhost or trusted IPs using the Server Access Manager and configuring Windows Firewall rules to limit inbound connections to only necessary ports.
What this means
What could happen
An attacker with network access to ibaPDA could read, modify, or delete files on the system running the application, potentially corrupting process data, configuration files, or disabling the monitoring system entirely.
Who's at risk
Water authorities and utility companies that use iba Systems ibaPDA for process monitoring and data acquisition. This includes facilities that rely on ibaPDA for SCADA data collection, trend analysis, or equipment performance monitoring. Organizations running version 8.12.0 are directly impacted.
How it could be exploited
An attacker on the network sends a specially crafted request to the ibaPDA Server (default port varies, typically 12000 or higher). Because no authentication is required and the vulnerability exists in file system access controls, the attacker gains unauthorized file system permissions and can read sensitive process data, alter configuration files, or delete files needed for operation.
Prerequisites
- Network access to ibaPDA Server port (typically 12000 or higher)
- No authentication required
- ibaPDA version 8.12.0 or earlier running and accessible
Remotely exploitableNo authentication requiredLow complexity attackCritical CVSS score (9.8)File system access allows data corruption or deletionAffects monitoring systems critical to plant operations
Exploitability
Low exploit probability (EPSS 0.1%)
Affected products (1)
ProductAffected VersionsFix Status
ibaPDA: 8.12.08.12.08.12.1 or later
Remediation & Mitigation
0/4
Do now
0/3WORKAROUNDConfigure Server Access Manager to restrict connections to only localhost (127.0.0.1) or specific trusted system IP addresses
HARDENINGDisable the Windows Firewall option 'Automatically open necessary ports in Windows Firewall' in I/O Manager General settings
HARDENINGDelete or deactivate all incoming firewall rules for ibaPDA Client and Server, then manually create rules only for necessary ports
Schedule — requires maintenance window
0/1Patching may require device reboot — plan for process interruption
HOTFIXUpdate ibaPDA to version 8.12.1 or later
CVEs (1)
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