How severe is CVE-2011-4534?

CVE-2011-4534 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2011-4534 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4534?

CVE-2011-4534 affects Copadata Zenon. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-4534?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2011-4534 published?

CVE-2011-4534 was published on 2012-02-10 and last updated on 2026-06-16.

CVE-2011-4534

CVE-2011-4534 is a high-severity vulnerability in Copadata Zenon with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Copadata Zenon
Published: 2012-02-10
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2011-4534?: 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.
How severe is CVE-2011-4534?: CVE-2011-4534 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2011-4534 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4534?: CVE-2011-4534 affects Copadata Zenon. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-4534?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2011-4534 published?: CVE-2011-4534 was published on 2012-02-10 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:copadata:zenon:6.51:sp0:*:*:*:*:*:*

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