MSRXMSRXSecurity
Vulnerabilities / CVE-2026-72530

CVE-2026-72530

Published 2026-08-19 · published (not yet in NVD)

CVE-2026-72530

Exploited in the wild: CISA added it to the Known Exploited Vulnerabilities catalog on 2026-08-20, with a fix-by date of 2026-09-03. Patch it first.

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.

9.5 CRITICAL
CVSS 4.0 · CNA
1.7%
chance of exploitation in the next 30 days (EPSS; higher than 76% of CVEs)

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.

Scores

Affected products

  • TrueConf TrueConf Server: * to < 5.3; 5.3 to < 5.3.9; 5.4 to < 5.4.9; 5.5 to < 5.5.5

Weakness: CWE-94

1 references (advisories, patches, write-ups)

Sources: CVE.org, FIRST EPSS. Missing ones did not answer or have no record yet.

Look up another CVECheck your dependenciesScan a website