CVE-2020-27293
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 · uneditedDelta Electronics CNCSoft-B Versions 1.0.0.2 and prior has a type confusion issue while processing project files, which may allow an attacker to execute arbitrary code.
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 confidenceDelta Electronics CNCSoft-B versions 1.0.0.2 and prior contain a type confusion vulnerability in the project file parsing functionality. When processing specially crafted project files, the software incorrectly handles object type references, potentially allowing an attacker to achieve arbitrary code execution in the context of the application.
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<= 1.0.0.2CVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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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Locate CNCSoft-B installation directoryCheck common installation paths such as C:\Program Files\Delta Electronics\CNCSoft-B or C:\Program Files (x86)\Delta Electronics\CNCSoft-B, or use Windows Search to find the executable (cncsoft.exe or similar)Affected if Software is not found in expected locations, indicating it may not be installed or may be installed in a non-standard location
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Identify installed versionRight-click the CNCSoft-B executable, select Properties, then go to the Details tab to view the Product Version; alternatively, open the software and look for version information in Help > About or the main window's title barAffected if The displayed version is 1.0.0.2 or any version prior to 1.0.0.2
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Verify project file functionality is presentLaunch CNCSoft-B and attempt to access the project file open/save dialogs, or check if .cncp or other project file extensions are associated with the softwareAffected if Project file open/save functionality exists and the software can load project files from disk
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Confirm vulnerability applicabilityDetermine if the system runs CNCSoft-B with project file parsing enabled (this is typically the default behavior when the software loads project files)Affected if The software loads or can load project files from any source, making the parsing functionality active
The environment is affected if CNCSoft-B version 1.0.0.2 or lower is installed and the software is capable of opening or parsing project files, as the type confusion vulnerability resides in that parsing functionality.
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 dataUpgrade CNCSoft-B to a patched version beyond 1.0.0.2. Until then, avoid opening project files from untrusted sources and consider running the software in an isolated environment.
- Consultation4.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-27293 — 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-2020-27293 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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