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CVE-2026-72529: TrueConf Server Missing Authentication for Critical Function Vulnerability

Critical · CVSS 9.8 (CVSS 3.1)KEV known exploitedEPSS 1.5%, 73th percentilePublished Updated Assigner: Kaspersky

In CISA’s Known Exploited Vulnerabilities catalog: TrueConf Server Missing Authentication for Critical Function Vulnerability.

Added , federal remediation due . Known ransomware use: Unknown.

Required action: 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.

Description

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 execute an arbitrary script by calling an undocumented function.

Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · CWE-306

Status incidents that name it

No tracked status incident names this CVE.

Affected vendors and products

TrueConf: TrueConf Server

References

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