CRITICAL CISA KEV

CVE-2026-72530

CVSS v3

CRITICAL

EPSS Score

1.7 %

exploit probability, as of 2026-10-19

CISA KEV

Yes

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-72530 yet.

Full record on NVD

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.

CISA Known Exploited Vulnerability

Date Added: 2026-08-20
Patch Due Date: 2026-09-03
Ransomware Use: Unknown

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Published: 2026-08-19
Last Modified: 2026-08-21

Frequently asked questions

What is CVE-2026-72530?

Is CVE-2026-72530 actively exploited?

Yes. CVE-2026-72530 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2026-09-03.

What is the CVSS score for CVE-2026-72530?

CVE-2026-72530 has a CVSS v3 base score of 9 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

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