---
cve: "CVE-2026-72530"
severity: "CRITICAL"
cvss: 9.5
epss: "1.8%"
vendor: "TrueConf"
kev: true
exploited: true
published: "2026-08-19 17:21:01"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T22:16:46+02:00"
---

# CVE-2026-72530

> 9.5 CRITICAL · ⚠️ CISA KEV (28 Tage) · 🔓 Exploited

## Beschreibung

A remote unauthorized attacker with network access via port 4307/TCP to the TrueConf server versions 5.3.X to 5.3.9, 5.4.X to 5.4.9, 5.5.X to 5.5.5, and earlier could use a specially crafted script to break out of the isolated environment and execute arbitrary code on the host system.

## CVSS-Vektor

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

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

## Referenzen

- <https://ics-cert.kaspersky.com/advisories/2026/08/11/trueconf-server-breakout-from-isolated-environment/>
- <https://securelist.com/tr/head-mare-targets-trueconf-server-with-phantomcore/120988/>
- <https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-72530>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-72530) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_