CVE-2020-27281
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 stack-based buffer overflow may exist in Delta Electronics CNCSoft ScreenEditor versions 1.01.26 and prior when processing specially crafted 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 · high confidenceA stack-based buffer overflow vulnerability exists in Delta Electronics CNCSoft ScreenEditor versions 1.01.26 and prior when parsing specially crafted project files. The overflow occurs due to insufficient bounds checking during file processing, which can be exploited to achieve arbitrary 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<= 1.01.26CVSS 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 ScreenEditor installationSearch for the executable file 'ScreenEditor.exe' in typical installation directories such as C:\Program Files\Delta Electronics\CNCSoft ScreenEditor\ or C:\Program Files (x86)\Delta Electronics\CNCSoft ScreenEditor\Affected if The executable is not found, meaning the software is not installed and the CVE does not apply
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Identify installed versionRight-click on ScreenEditor.exe, select Properties, and check the 'Product version' field in the Details tab. Alternatively, run 'ScreenEditor.exe -v' or check in Windows Control Panel under Programs and FeaturesAffected if The displayed version is 1.01.26 or any version lower than 1.01.26 (e.g., 1.01.25, 1.01.00)
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Confirm project file parsing capabilityLaunch the application and verify it can open or create project files with extensions such as .scn or .dpj. Check the File menu for Open or Import optionsAffected if The software can open project files and the version is within the affected range (1.01.26 or prior)
You are affected if CNCSoft ScreenEditor is installed with version 1.01.26 or lower and the software is used to open project files.
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 dataAvoid opening untrusted or unverified project files in CNCSoft ScreenEditor until an official patch is available from Delta Electronics. Apply vendor updates as soon as they are released.
- Consultation4.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2020-27281 — 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-2020-27281 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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