TrueConf Server Code Injection Vulnerability (CVE-2026-72530)
Severity: critical · Patch status: unknown · Since 2026-08-20 · CVE-2026-72530
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. CISA added CVE-2026-72530 to its Known Exploited Vulnerabilities catalog on Aug 20, 2026, which means attackers are exploiting it in the wild.
What to do
- 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.
- US federal agencies must remediate by Sep 3, 2026 (BOD 22-01); treat that as the outer limit.
Sources
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