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ZenonApplication · Copadata

CVE-2011-4533

HIGH · 7.5 CVSS v2.0 Published 2012-02-10
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
zenAdminSrv.exe in Ing. Punzenberger COPA-DATA zenon 6.51 SP0 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted packet to TCP port 50777, aka Reference Number 25240.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The zenAdminSrv.exe service in COPA-DATA zenon 6.51 SP0 contains a vulnerability that allows remote attackers to send crafted packets to TCP port 50777, causing either a denial of service (daemon crash) or potentially executing arbitrary code on the affected system.

MitigationRestrict network access to TCP port 50777 through firewall rules or network segmentation, apply available vendor patches, or disable the zenAdminSrv service if not required.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
ZenonApplication
Affected:= 6.51

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if zenAdminSrv.exe service is running
    Check running processes or services list for zenAdminSrv.exe or zenAdminSrv
    Affected if The service is present and running on the system
  2. Verify the installed zenon version is 6.51
    Check the installed zenon product version through the software inventory, program files information, or zenon-specific version query method
    Affected if The installed version equals exactly 6.51 (no service pack or patch applied)
  3. Confirm TCP port 50777 is open and listening
    Use netstat or port scanning tool to check if port 50777 is in LISTENING state on the system
    Affected if Port 50777 is exposed and accepting connections
  4. Determine if the service is network-accessible
    Verify network binding configuration or firewall rules to confirm the service port is reachable from network endpoints
    Affected if TCP port 50777 is accessible from untrusted network segments

You are affected if zenon version 6.51 is installed with the zenAdminSrv.exe service running and TCP port 50777 is exposed on the network.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Restrict network access to TCP port 50777 through firewall rules or network segmentation, apply available vendor patches, or disable the zenAdminSrv service if not required.

Fix this in Zenon Scoped from the published advisory
  • Consultation4.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,180
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2011-4533 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data