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TI-2026-13635 Aliases CVE-2026-16315GHSA-5qgx-gc63-5xc9

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

Priority LOW 38CWE-208Published · Updated

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 StationGuard before version 4.10 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00418 36th percentileScored 2026-11-07
Fix Fixed OMICRON StationGuard (OMICRON electronics GmbH): 4.10

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

VendorProductAffected versionsFixed inStatusSource
OMICRON electronics GmbHOMICRON StationGuardbefore 4.104.10Patch availableCNA

Remediation

  • Fix · CNA OMICRON StationGuard (OMICRON electronics GmbH) Fixed in 4.10

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    OMICRON StationGuard — omicronenergy.com/.well-known/csaf/osa-21.json

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-13636 Malformed IEC 61850 Sampled Values frames cause partial denial of service in StationGuardPriority LOW 8
    Show all 2 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-16315
  2. 2026-10-03 Alias added: GHSA-5qgx-gc63-5xc9

References

Advisory 1

  • TI-2026-13933 Authentication and authorization bypass via cryptographic timing side-channel attack in StationScout CVSS 4.0HIGH 8.3
  • 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