CVE-2026-72530

Critical KEV · actively exploited PoC available

CVSS base score

9.0

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

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.

Vendor

trueconf

Product

trueconf server

Affected

trueconf trueconf server

Weakness

CWE-94 · Code injection

Published

Aug 19, 2026

Last modified

Aug 21, 2026

CVSS version

v3.1

Views

// References & exploits

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

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