Multiple security vulnerabilities have been identified within ABB Ability Zenon software, specifically impacting Industrial Internet of Things (IIoT) services that utilize MongoDB version 4.2, according to CISA Advisories. The identified flaws pose significant risks, including the potential for unauthorized parties to execute code, bypass security protocols, or crash affected systems.
The vulnerabilities, which carry a CVSS v3 base score of 7.8, stem from a variety of technical issues ranging from improper length parameter handling and null byte neutralization to out-of-bounds write risks and allocation of resources without appropriate throttling. These defects allow for potential unauthorized actions or system compromises across diverse infrastructure sectors.
Impacted Environments and Risks
The software affected includes all versions of ABB IIoT services with MongoDB (4.2) installed on the ABB Ability Zenon platform. The risks associated with these vulnerabilities are diverse, involving common weaknesses such as:
| Technical Issue | Security Consequence |
|---|---|
| Improper Handling of Length Parameter | Inconsistency/Security Bypass |
| Out-of-bounds Write | System Crash/Unauthorized Execution |
| Allocation of Resources without Limits | Denial of Service |
| Improper Certificate Validation | Unauthorized Privilege Execution |
Furthermore, CVE-2025-14847 highlights that mismatched length fields in Zlib compressed protocol headers may facilitate the reading of uninitialized heap memory by unauthenticated clients. This specific CVE impacts a wide range of MongoDB Server versions, including 7.0 prior to 7.0.28, 8.0 prior to 8.0.17, 8.2 prior to 8.2.3, 6.0 prior to 6.0.27, 5.0 prior to 5.0.32, 4.4 prior to 4.4.30, and versions 4.2, 4.0, and 3.6.
ABB recommends that users operating IIoT services with MongoDB version 4.2 replace the bundled instance with a supported, patched version. If the IIoT functionality is not required, ABB advises administrators to remove these services using the Control panel uninstaller to eliminate the dependency entirely. Further technical guidance is available through the company’s official PSIRT security advisory, reference number 9AKK108472A9037.
Why It Matters
This advisory underscores the inherent risks of bundling third-party database dependencies within industrial control software. As IIoT platforms integrate deeper into critical infrastructure—such as water, energy, and healthcare—the reliance on legacy software components like MongoDB 4.2 creates significant attack surfaces. Organizations must prioritize visibility into their software supply chain, as these dependencies often evolve independently of the parent software. Failing to patch or remove unnecessary embedded services leaves sensitive industrial systems exposed to external exploitation, potentially compromising operational technology (OT) environments that are traditionally isolated from IT-based cybersecurity threats.
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