TI-2026-13933 Aliases CVE-2026-16731 GHSA-66qm-g96m-4843

Authentication and authorization bypass via cryptographic timing side-channel attack in StationScout

LOW 38CWE-208Published 2026-08-06 · Updated 2026-08-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: High
Attack requirements: None
Impact type: Information disclosure
Confidentiality · integrity · availability: High · High · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-208.

Summary

OMICRON StationScout before version 3.05 contains a cryptographic timing side-channel vulnerability in the backend authentication mechanism that may allow an unauthenticated attacker to forge valid authentication credentials, bypass authentication and authorization, and impersonate legitimate clients. An attacker can gain full access to the system configuration, allowing modification, reset, or unauthorized alteration of system parameters or injecting network traffic into the connected network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00441 38th percentileScored 2026-11-07

Fix Fixed OMICRON StationScout (OMICRON electronics GmbH): 3.05

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
OMICRON electronics GmbH	OMICRON StationScout	before 3.05	3.05	Patch available	CNA

OMICRON StationScout VendorOMICRON electronics GmbH Affected before 3.05 Fixed in 3.05 Patch available CNA

Remediation

Fix · CNA OMICRON StationScout (OMICRON electronics GmbH) Fixed in 3.05

Timeline

2026-10-02 Threatist record created from CVE-2026-16731
2026-10-03 Alias added: GHSA-66qm-g96m-4843

References

Advisory 1

https://www.omicronenergy.com/.well-known/csaf/osa-21.json

TI-2026-13635 Authentication and authorization bypass via cryptographic timing side-channel attack in StationGuard CVSS 4.0HIGH 8.1
TI-2026-13636 Malformed IEC 61850 Sampled Values frames cause partial denial of service in StationGuard CVSS 4.0LOW 1.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences