CVE-2011-4534: Copadata Zenon

High severity, CVSS 7.5. EPSS: 2.4% chance of exploitation in the next 30 days.

ZenSysSrv.exe in Ing. Punzenberger COPA-DATA zenon 6.51 SP0 allows remote attackers to cause a denial of service (service crash) or possibly execute arbitrary code via a series of connections and disconnections on TCP port 1101, aka Reference Number 25212.

Affected products

• Copadata Zenon: version 6.51 only

Published 2012-02-10. Last modified 2026-06-16.