Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-72530

CVE-2026-72530CRITICAL

TrueConf TrueConf Server — 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.…

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   H   P   N   N   H   H   H    9.5   .0169   76.2   YES

AFFECTED
  Product          Versions     Fixed
  TrueConf Server  unspecified  —

TIMELINE
  Aug 10  Reserved by Kaspersky
  Aug 19  EXPLOIT PUBLISHED — CVE-2026-72530 (TrueConf Server). Public exploit reference added.
  Aug 19  Published (CNA: Kaspersky)
  Aug 20  ADDED TO KEV — CVE-2026-72530 (TrueConf Server). Remediation due September 3, 2026.
  Aug 21  EXPLOIT PUBLISHED — CVE-2026-72530 (TrueConf Server). Public exploit reference added.
  Sep 4   DUE DATE PASSED — CVE-2026-72530 (TrueConf Server). CISA remediation deadline was September 3, 2026; still in catalog.

CWE-94 · CNA: Kaspersky · CVSS v4.0 · 3 references · NVD status: Analyzed · KEV due September 3, 2026

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 use a specially crafted script to break out of the isolated environment and execute arbitrary code on the host system.

Lifecycle

Complete event history — 6 events, chronological
Date	Event	Detail
August 10, 2026	Reserved	Reserved by Kaspersky
August 19, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-72530 (TrueConf Server). Public exploit reference added.
August 19, 2026	Published	Published (CNA: Kaspersky)
August 20, 2026	KEV ADDED	ADDED TO KEV — CVE-2026-72530 (TrueConf Server). Remediation due September 3, 2026.
August 21, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-72530 (TrueConf Server). Public exploit reference added.
September 4, 2026	DUE DATE PASSED	DUE DATE PASSED — CVE-2026-72530 (TrueConf Server). CISA remediation deadline was September 3, 2026; still in catalog.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
TrueConf	TrueConf Server	—	—	—

Weaknesses

CWE-94

References (3)

https://ics-cert.kaspersky.com/advisories/2026/08/11/trueconf-server-breakout-from-isolated-environment/ [Third Party Advisory]
https://securelist.com/tr/head-mare-targets-trueconf-server-with-phantomcore/120988/ [Exploit, Third Party Advisory]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-72530 [US Government Resource]

Authoritative record: CVE-2026-72530 at cve.org

Vendors: trueconf

Weaknesses: CWE-94

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-72530 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.