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 use a specially crafted script t…
Critical CVSS 9.0 Listed in CISA KEV
Summary
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 use a specially crafted script to break out of the isolated environment and execute arbitrary code on the host system.
In-depth triage
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- TrueConf:Server
- :
Sources
- NVD DATABASE
- CISA KEV DATABASE
- Grok bot vulnerability crawler DATABASE
Original Links
- https://ics-cert.kaspersky.com/advisories/2026/08/11/trueconf-server-breakout-from-isolated-environment/
- https://securelist.com/tr/head-mare-targets-trueconf-server-with-phantomcore/120988/
- https://trueconf.com/blog/news/security-fixes-updates-and-advisories reference
- https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk reference
- https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk reference
- https://nvd.nist.gov/vuln/detail/CVE-2026-72530 reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-72530 US Government Resource
Timeline
- nvd_ingest NVD
- kev_ingest CISA KEV
- grok_bot_ingest Grok bot vulnerability crawler