CVE-2016-9157
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 · uneditedA vulnerability in Siemens SICAM PAS (all versions before V8.09) could allow a remote attacker to cause a Denial of Service condition and potentially lead to unauthenticated remote code execution by sending specially crafted packets to port 19234/TCP.
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 confidenceA critical vulnerability in Siemens SICAM PAS (all versions before V8.09) allows remote attackers to send specially crafted packets to port 19234/TCP, causing Denial of Service and potentially achieving unauthenticated remote code execution.
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< 8.09CVSS 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
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 checksWork through these to decide whether this CVE applies to you.
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Identify SICAM PAS installationCheck system for Siemens SICAM PAS installation directories or review installed software inventoryAffected if SICAM PAS is not found on the system, the vulnerability does not apply
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Determine installed SICAM PAS versionLocate version information in the SICAM PAS installation directory, typically in about dialog, readme files, or system registry entriesAffected if Installed version is any version before V8.09 (e.g., V8.08, V8.07, etc.)
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Check if port 19234/TCP is listeningUse netstat or similar network diagnostic tool to verify if port 19234/TCP is in LISTEN state on the systemAffected if Port 19234/TCP is open and accepting connections on the affected system
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Verify network exposure of port 19234/TCPReview firewall rules or perform a port scan from an external perspective to determine if port 19234/TCP is accessible from network segments outside the trusted zoneAffected if Port 19234/TCP is accessible from untrusted network segments
System is affected if SICAM PAS version is below V8.09 AND port 19234/TCP is exposed and accessible on the network.
Generated from the published advisory. Verify against your own configuration.
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.
dbcve · scoped8.09
Upgrade SICAM PAS to version 8.09 or later; additionally, restrict network access to port 19234/TCP through firewalls or network segmentation to limit attack surface.
SICAM PAS V8.09
- Back up the current Siemens SICAM PAS system and configuration data before proceeding with the upgrade
- Obtain the SICAM PAS version 8.09 or later from Siemens (via official channels such as Siemens Customer Support or their download portal)
- Review Siemens upgrade documentation for SICAM PAS V8.09 to understand version-specific upgrade requirements
- Execute the upgrade procedure according to Siemens official installation/upgrade instructions for your deployment mode
- After upgrade completion, verify that the SICAM PAS version is V8.09 or later by checking the product information
- Confirm that the service on port 19234/TCP is running normally and the vulnerability is remediated
- Ensure network segmentation or firewall rules are in place to limit access to port 19234/TCP to trusted internal systems only, as a defense-in-depth measure
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation12.0 h
- Implementation20.0 h
- Testing24.0 h
- Review / QA8.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-9157 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2016-9157 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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