CVE-2026-72529
Unauthenticated remote arbitrary script execution in TrueConf Server via TCP/4307.
Is CVE-2026-72529 being exploited?
Yes. CVE-2026-72529 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2026-72529?
CVE-2026-72529 is rated Critical with a CVSS score of 9.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-72529?
Yes. A fix has been recorded for CVE-2026-72529. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-72529 affect?
CVE-2026-72529 affects TrueConf Server 5.3.0 - 5.3.9, TrueConf Server 5.4.0 - 5.4.9, TrueConf Server 5.5.0 - 5.5.5, Earlier TrueConf Server versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-72529?
Isolate/deny TCP/4307, restrict network access, apply vendor patch when released, and monitor logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated attacker can call an undocumented function on TCP/4307 to execute arbitrary scripts, enabling full server compromise and lateral movement.
Immediate action required
- affected< 5.3
- affected>= 5.3 and < 5.3.9
- affected>= 5.4 and < 5.4.9
- affected>= 5.5 and < 5.5.5
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.