CVE-2025-66590
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 · uneditedIn AzeoTech DAQFactory release 20.7 (Build 2555), an out-of-bounds write vulnerability can be exploited by an attacker to cause the program to write data past the end of an allocated memory buffer. This can lead to arbitrary code execution or a system crash.
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 confidenceAn out-of-bounds write vulnerability in AzeoTech DAQFactory release 20.7 (Build 2555) allows an attacker to write data past the end of an allocated memory buffer, potentially achieving arbitrary code execution or causing a system crash.
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< 21.1CVSS 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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Verify DAQFactory installationCheck for AzeoTech DAQFactory in the program files directory (typically C:\Program Files\AzeoTech\DAQFactory or C:\Program Files (x86)\AzeoTech\DAQFactory) or look for the application in Add/Remove ProgramsAffected if DAQFactory is installed on the system
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Identify installed DAQFactory versionOpen DAQFactory and go to Help > About, or check the version information of the executable file (DAQFactory.exe) by right-clicking and selecting Properties > DetailsAffected if The version displayed is 20.7 or any version prior to 21.1
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Confirm build numberIn the About dialog, note the Build number displayed alongside the version. The vulnerability affects Build 2555 and earlier.Affected if Build number is 2555 or lower
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Check for patch availabilityVisit the vendor's official website or release notes to verify if version 21.1 or later is available for downloadAffected if Version 21.1 or later is not installed and no corresponding patch has been applied
The system is affected if AzeoTech DAQFactory is installed with any version prior to 21.1 (including release 20.7 build 2555), as the out-of-bounds write vulnerability exists in the vulnerable code path of these versions.
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 · scoped21.1
Apply vendor-provided patches when available; if no patch exists, minimize network exposure of affected systems and implement network segmentation to limit attack surface.
Daqfactory 21.1 or latest stable release
- 1. Backup all current Daqfactory project files and configurations
- 2. Obtain Daqfactory version 21.1 or later from the official AzeoTech vendor
- 3. Uninstall the current Daqfactory version from the system
- 4. Install Daqfactory version 21.1 or the latest stable release
- 5. Restore project files from the backup
- 6. Verify the installation by checking the version in the application (Help > About)
- 7. Test critical applications to ensure normal operation
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation8.0 h
- Implementation16.0 h
- Testing24.0 h
- Review / QA12.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $16,384.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-66590 — 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-2025-66590 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
- No spam, self-promotion, credentials, or personal data