CVE-2026-73173 Missing authorization in EKI-1242EIMS
Remote unauthenticated attackers can invoke critical management functions like reboot and firmware upgrade on Advantech EKI-1242EIMS devices via TCP port 5058.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73173?
CVE-2026-73173 is a high-severity missing authorization vulnerability in Advantech EKI-1242EIMS, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Nozomi Networks Labs identified a CWE-306: Missing Authentication for Critical Function vulnerability in the edgserver management protocol of Advantech EKI-1242EIMS in firmware version V1.06.01 that allows a remote unauthenticated attacker to invoke critical device-management functions, including network reconfiguration, reboot, reset, and firmware upgrade, by sending crafted requests to TCP port 5058.
Weakness: CWE-306
Which versions are affected by CVE-2026-73173?
How do I fix CVE-2026-73173?
No fix has been published for CVE-2026-73173 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-73173 being exploited?
There is no known exploitation of CVE-2026-73173 in the wild and no public exploit code.
Sources
Also known as GHSA-r838-p3xg-9mfp.