Risk Letters

Exploited vulnerability

CVE-2026-72530

TLP:CLEAR

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.

Facts

  • Vendor: TrueConf
  • Product: Server
  • CVSS: 9.5
  • EPSS (probability of exploitation within 30 days): 1.7 %
  • On CISA's Known Exploited Vulnerabilities list since: 20 August 2026
  • First known exploitation: 20 August 2026
  • CISA's deadline for US federal agencies: 3 September 2026
  • Weakness: CWE-94
  • First seen by Risk Letters: 25 August 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD