---
cve: "CVE-2026-73807"
severity: "CRITICAL"
cvss: 9.3
epss: "0.8%"
vendor: "mySCADA Technologies"
kev: false
exploited: false
published: "2026-09-15 22:16:58"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-29T03:38:37+01:00"
---

# CVE-2026-73807

> 9.3 CRITICAL · 🧪 PoC

## Beschreibung

The mySCADA myPRO Manager command API does not properly enforce authentication for privileged functions. An unauthenticated attacker with network access to the affected API could exploit this vulnerability to access privileged management functions.

## CNA-Record (Kanon, cvelistV5)

- CNA: **icscert**
- State: PUBLISHED
- Stand: 2026-09-16 18:10:48
- CNA-CVSS: **9.8** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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-862** — Missing Authorization
  The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

## Angriffsmuster (CAPEC)

- [CAPEC-665 — Exploitation of Thunderbolt Protection Flaws](https://capec.mitre.org/data/definitions/665.html) _(Severity: Very High)_

## ATT&CK-Techniken

- [T1211 — Exploitation for Defensive Evasion](https://attack.mitre.org/techniques/T1211/)
- [T1542.002 — Pre-OS Boot: Component Firmware](https://attack.mitre.org/techniques/T1542/002/)
- [T1556 — Modify Authentication Process](https://attack.mitre.org/techniques/T1556/)

## Referenzen

- <https://www.myscada.org/downloads/mySCADAPROManager/>
- <https://www.cisa.gov/news-events/ics-advisories/icsa-26-258-03>
- <https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-258-03.json>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-73807/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_