SB2026082433 - Multiple vulnerabilities in TrueConf server
Published: August 24, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Missing Authentication for Critical Function (CVE-ID: CVE-2026-72529) Exploited
CWE-ID: CWE-306 - Missing Authentication for Critical Function
CVSSv4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation. A remote attacker can call an undocumented function and execute an arbitrary script.
2) Code Injection (CVE-ID: CVE-2026-72530) Exploited
CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')
CVSSv4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation. A remote attacker can use a specially crafted script to break out of the isolated environment and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.
References
- https://ics-cert.kaspersky.com/advisories/2026/08/11/trueconf-server-missing-authentication-for-critical-function/
- https://securelist.com/tr/head-mare-targets-trueconf-server-with-phantomcore/120988/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-72529
- https://ics-cert.kaspersky.com/advisories/2026/08/11/trueconf-server-breakout-from-isolated-environment/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-72530