CVE entry · CVE-2026-72530
CVE-2026-72530: TrueConf Server Code Injection Vulnerability
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.
- Actively exploited: added to CISA’s KEV catalog on August 20, 2026.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: September 3, 2026.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes TrueConf Server, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.
References
- Vendor advisory or reference cited by CISA (trueconf.com)
- Vendor advisory or reference cited by CISA (ics-cert.kaspersky.com)
- NVD entry (NIST)
- CISA KEV catalog