CVE-2025-9066
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 security issue was discovered within FactoryTalk® ViewPoint, allowing unauthenticated attackers to achieve XXE. Certain SOAP requests can be abused to perform XXE, resulting in a temporary denial-of-service.
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 · moderate confidenceFactoryTalk ViewPoint contains an XML External Entity (XXE) vulnerability in its SOAP endpoint. Unauthenticated attackers can send specially crafted SOAP requests with malicious XML that references external entities, potentially leading to denial of service.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- Privileges
- None
- Authentication
- X
- User interaction
- None
- Scope
- X
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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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Confirm FactoryTalk ViewPoint installationCheck Program Files/Rockwell Software for FactoryTalk ViewPoint installation directory, or look for the service in Windows Services list named 'FactoryTalk ViewPoint'Affected if FactoryTalk ViewPoint is not installed on the system
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Identify SOAP web service endpoint availabilityLocate the SOAP endpoint configuration files (typically web.config or similar in the web application directory) and check for exposed .asmx or SOAP service URLsAffected if SOAP endpoints are accessible and not disabled
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Check XML parser configuration for external entity processingExamine the web.config or application configuration files for XML parser settings, specifically look for 'XmlResolver', 'DtdProcessing', or 'ExternalEntityResolver' settingsAffected if XML external entity processing is enabled (XmlResolver is not set to null/disabled, or DtdProcessing is not set to 'Prohibit' or 'Ignore')
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Review installed product versionCheck the installed version through Windows Programs and Features, or look for versioninfo.txt/readme in the installation directoryAffected if Installed version falls within the affected range (compare to vendor advisory for specific version numbers)
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Assess network accessibility of SOAP servicesTest SOAP endpoint accessibility from an unauthorized network perspective by attempting to access the SOAP WSDL URL from external systemsAffected if SOAP endpoints are exposed to untrusted networks without authentication
The environment is affected if FactoryTalk ViewPoint is installed with accessible SOAP endpoints and XML external entity processing is enabled in the parser configuration.
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.
From vendor dataDisable external entity processing and DTD support in the XML parser, or apply vendor-provided patches for FactoryTalk ViewPoint.
- Consultation3.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-9066 — 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-2025-9066 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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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.
- 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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