---
cve: "CVE-2026-73173"
severity: "HIGH"
cvss: 8.8
epss: "25.8%"
vendor: "Advantech"
kev: false
exploited: false
published: "2026-09-16 13:18:05"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-19T04:01:21+02:00"
---

# CVE-2026-73173

> 8.8 HIGH

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-306** — Missing Authentication for Critical Function
  The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

## Angriffsmuster (CAPEC)

- [CAPEC-12 — Choosing Message Identifier](https://capec.mitre.org/data/definitions/12.html) _(Severity: High)_
- [CAPEC-36 — Using Unpublished Interfaces or Functionality](https://capec.mitre.org/data/definitions/36.html) _(Severity: High)_
- [CAPEC-62 — Cross Site Request Forgery](https://capec.mitre.org/data/definitions/62.html) _(Severity: Very High)_
- [CAPEC-166 — Force the System to Reset Values](https://capec.mitre.org/data/definitions/166.html) _(Severity: Medium)_
- [CAPEC-216 — Communication Channel Manipulation](https://capec.mitre.org/data/definitions/216.html)

## Referenzen

- <https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2026-73173>
- <https://advcloudfiles.advantech.com/cms/5dafee28-ad53-4d07-a328-7896fcc24b6e/Security%20Advisory%20PDF%20File/SECURITY-ADVISORY----EKI-1242IEIMS-updated-20260904.pdf>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-73173) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_