CVE-2026-16316
Received Received - Intake

Improper Input Validation in OMICRON StationGuard 4.00

Publication date: 2026-08-06

Last updated on: 2026-08-06

Assigner: 57995746-fc30-4a4d-94f6-a13d079c41f4

Description
OMICRON StationGuard 4.00 contains an improper input validation vulnerability in its IEC 61850 Sampled Values (SV) frame processing. A specially crafted SV frame can cause the affected process to terminate, disrupting alert processing for Sampled Values traffic. The vulnerability does not affect overall system availability or the processing of other traffic types, and the process is automatically restarted, and the failure is immediately reported to the user.

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Meta Information

Published
2026-08-06
Last Modified
2026-08-06
Generated
2026-08-06
AI Q&A
2026-08-06
EPSS Evaluated
N/A
NVD
CVE-2026-16316
EUVD
EUVD-2026-53922

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
omicron stationguard 4.00

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

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Executive Summary

OMICRON StationGuard 4.00 has an improper input validation flaw in its IEC 61850 Sampled Values (SV) frame processing. A specially crafted SV frame can cause the affected process to terminate, disrupting alert processing for SV traffic. The process restarts automatically, and the failure is reported to the user.

Detection Guidance

Detecting this vulnerability requires monitoring for improperly formatted IEC 61850 Sampled Values (SV) frames that may cause StationGuard to terminate. Inspect network traffic for malformed SV frames using packet capture tools like Wireshark or tcpdump. Look for frames with unexpected lengths, invalid headers, or corrupted data fields.

Impact Analysis

This vulnerability may cause temporary disruptions in alert processing for Sampled Values traffic. However, it does not affect overall system availability or other traffic types. The impact is limited to potential missed alerts during the brief process termination.

Mitigation Strategies

Apply the latest security patches or updates from OMICRON for StationGuard 4.00. Monitor the affected process for unexpected terminations and ensure alerts are configured to notify administrators of failures. Restrict network access to IEC 61850 SV traffic where possible to reduce exposure.

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