Vulnerability · Published Aug 6, 2026 · Assigned by OMICRON

CVE-2026-16316Malformed IEC 61850 Sampled Values frames cause partial denial of service in StationGuard

Medium 4.3

In plain English

A medium-severity improper input validation in OMICRON StationGuard from OMICRON electronics GmbH. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 84.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
OMICRON electronics GmbH	OMICRON StationGuard	4.00

Weakness: CWE-20 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

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