CVE-2026-72530
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.
Actively exploited
- In the CISA exploited-vulnerabilities catalogue since Aug 20, 2026
- US federal agencies must remediate it by Sep 3, 2026 (BOD 22-01)
- Attacked 8 days before the vulnerability was made public
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.
Source: CISA KEV · Aug 20, 2026 Aug 19, 2026 Aug 12, 2026
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:HAffected products
| Vendors | Prodotto | Versioni |
|---|---|---|
| trueconf | trueconf server | < 5.3.9.10013 |
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