CVE-2016-5798 Fatek CVE debrief

Who should care

Organizations that use Fatek Automation PM Designer V3 2.1.2.2, Automation FV Designer 1.2.8.0, or the Fatek Communication Server should review this issue. This is especially relevant for industrial control or automation environments where a crash could interrupt engineering or communications workflows.

Technical summary

The NVD entry identifies CWE-119 as the underlying weakness class. The vulnerable CPEs listed are cpe:2.3:a:fatek:automation_pm_designer:2.1.2.2 and cpe:2.3:a:fatek:automation_fv_designer:1.2.8.0. The vulnerability is network reachable (AV:N) and requires no privileges or user interaction (PR:N/UI:N). The reported effect is denial of service through stack-based or remote buffer overflow leading to a crash; the supplied corpus does not confirm code execution.

Defensive priority

High. The combination of network exposure, no authentication requirement, and high availability impact makes this a meaningful operational risk, even though the supplied corpus only confirms crash behavior.

Recommended defensive actions

• Identify whether any systems run Fatek Automation PM Designer V3 2.1.2.2, Automation FV Designer 1.2.8.0, or the Fatek Communication Server.
• Review the linked ICS-CERT advisory for vendor guidance and mitigation steps.
• Restrict network access to affected engineering and communication services to only trusted hosts and segments.
• Monitor affected systems for unexpected crashes or service interruptions.
• Apply any vendor-provided updates, mitigations, or compensating controls referenced in the advisory material.
• If the software is no longer needed on a host, remove or isolate it to reduce attack surface.

Evidence notes

This debrief is based only on the supplied NVD record and linked references. The NVD metadata lists the vulnerable Fatek versions, CWE-119, and the CVSS 3.0 vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. The description states that additional valid packets can trigger a stack-based buffer overflow and crash, and that a malicious attacker can trigger a remote buffer overflow on the Fatek Communication Server. Publication date used for timing context is 2017-02-13; the later modified date reflects record maintenance and not the original vulnerability date.

Sources and references

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.