Secuno
ENNL
Book demo

CVE-2026-72530

TrueConf Server Code Injection

9.0 CRITICALActively exploited (CISA KEV)Public exploitEPSS 1.69%
  1. Published19 Aug 2026
  2. Added to CISA KEV20 Aug 2026
  3. Remediation due3 Sept 2026
Actively exploited (CISA KEV)

TrueConf Server contains a code injection vulnerability that could allow an unauthorized remote attacker with network access via port 4307/TCP to use a specially crafted script to break out of the isolated environment and execute arbitrary code on the host system.

Added to KEV: 20 Aug 2026Federal remediation due: 3 Sept 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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Trueconf Server≥ 5.4.0.12700 < 5.4.9.10019 · ≥ 5.5.0.13828 < 5.5.5.10009 · < 5.3.9.10015 · ≥ 5.4.0.12689 < 5.4.9.10072

Remediation

Fixed in
Trueconf Server≥ 5.4.9.10019

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-891079.9
SAP S/4HANA (Manage Substitution/Validation Rules) does not sufficiently validate input…
CVE-2026-961199.9
IBM i 7.3, 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to obtain…
CVE-2026-821088.8
IBM DataStage on Cloud Pak for Data 5.4.0.0 could allow a remote authenticated attacker…
CVE-2026-909209.8
IBM Maximo AI Service 9.1.0, and 9.2.0 could allow a remote attacker to execute…
CVE-2026-185378.7
IBM Maximo Application Suite - Location Service for Esri Component 9.2, 9.1, and 9.0 is…
CVE-2026-1093088.8
Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 passes the raw 'updates' request…

Frequently asked

Is CVE-2026-72530 being actively exploited?

Yes. CVE-2026-72530 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 20 Aug 2026.

How severe is CVE-2026-72530?

CVE-2026-72530 has a CVSS 3.1 base score of 9.0, rated critical. EPSS estimates a 1.69% probability of exploitation.

Which products are affected by CVE-2026-72530?

Affected products include Trueconf Server.

How do I fix CVE-2026-72530?

Upgrade affected software to a fixed version, for example Trueconf Server 5.4.9.10019 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-72530 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.