CVE-2026-73175 Denial of service in EKI-1242EIMS
An adjacent unauthenticated attacker can exhaust the session pool of the Advantech EKI-1242EIMS OPC UA gateway, causing a complete denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73175?
CVE-2026-73175 is a high-severity denial of service vulnerability in Advantech EKI-1242EIMS, published on 16 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Nozomi Networks Labs identified a CWE-400: Uncontrolled Resource Consumption vulnerability in the OPC UA gateway component of Advantech EKI-1242EIMS in firmware version V1.06.01 that allows an adjacent unauthenticated attacker to exhaust the server session pool and cause a complete denial of service to all legitimate OPC UA clients by opening multiple anonymous sessions.
Weakness: CWE-400
Which versions are affected by CVE-2026-73175?
How do I fix CVE-2026-73175?
No fix has been published for CVE-2026-73175 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-73175 being exploited?
There is no known exploitation of CVE-2026-73175 in the wild and no public exploit code.
Sources
Also known as GHSA-mvv7-vr4g-xvmv.