Exploited vulnerability · CISA KEV

Is CVE-2026-72529 exploited? Yes: in CISA KEV since 20 Aug 2026

Gociux · TrueConf Server · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2026-72529, TrueConf Server Missing Authentication for Critical Function Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 20 Aug 2026, 1 days after it was published. It affects TrueConf Server. If you run it, CISA's required action is: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

What it is

TrueConf Server contains a missing authentication for critical function vulnerability which could allow a remote unauthorized attacker with network access via port 4307/TCP to execute an arbitrary script.

What to do

1. Check whether you run it. Look for Server in your asset inventory, including appliances and cloud images. Stack check lists every exploited TrueConf CVE at once.
2. Apply the fix. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 19 Aug 2026.
4. Get told next time. Email alerts when CISA adds a CVE for TrueConf.

Other exploited CVEs in Server

• CVE-2026-72530: TrueConf Server Code Injection Vulnerability (20 Aug 2026)

References

• trueconf.com/blog/news/security-fixes-updates-and-advisories
• ics-cert.kaspersky.com/advisories/2026/08/11/trueconf-server-missing-authenticatio
• nvd.nist.gov/vuln/detail/CVE-2026-72529

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in August 2026 · TrueConf scorecard · act-now radar.