CVE Watch21 ago 2026

CVE-2026-72530

TrueConf Server Code Injection Vulnerability

CVSS

9.0

Crítico

EPSS

1.7%

p77

KEV

SÍ

20 ago 2026

Exploit Today

0-100

Publicado: 19 ago 2026 · Última mod.: 21 ago 2026 · CWE-94

EPSS · 30d

1.7%EPSS · 30 días1.8%

2026-09-162026-10-14

Ficha del catálogo KEV

Producto

TrueConf / Server

Vulnerabilidad

TrueConf Server Code Injection Vulnerability

Añadido a KEV

20 ago 2026

Remediar antes de

3 sept 2026

Uso conocido en ransomware

Descripción resumida

TrueConf Server contains a code injection vulnerability that could allow an unauthorized remote attacker with network access via port 4307/TCP to use a specially crafted script to break out of the isolated environment and execute arbitrary code on the host system.

Acción requerida

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Notas

https://trueconf.com/blog/news/security-fixes-updates-and-advisories ; https://ics-cert.kaspersky.com/advisories/2026/08/11/trueconf-server-breakout-from-isolated-environment/ ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-72530

Descripción técnica

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.

Referencias oficiales

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