CVE-2020-6976
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 Industrial Automation CNCSoft ScreenEditor, v1.00.96 and prior. An out-of-bounds read overflow can be exploited when a valid user opens a specially crafted, malicious input file due to the lack of validation.
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 confidenceDelta Industrial Automation CNCSoft ScreenEditor versions 1.00.96 and prior contain an out-of-bounds read vulnerability when parsing specially crafted input files. The lack of proper validation on file data allows an attacker to read memory beyond allocated buffers by enticing a valid user to open a malicious file.
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<= 1.00.96CVSS 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
- None
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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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Check if CNCSoft ScreenEditor is installedLook for Delta Industrial Automation CNCSoft ScreenEditor in the list of installed programs via Windows Control Panel > Programs and Features, or check common installation directories such as C:\Program Files\Delta Industrial Automation\CNCSoft ScreenEditor or C:\Program Files (x86)\Delta Industrial Automation\CNCSoft ScreenEditorAffected if CNCSoft ScreenEditor is present on the system
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Determine the installed version of CNCSoft ScreenEditorRight-click the ScreenEditor executable (typically named CNCSoft.exe or similar) in the installation folder, select Properties, and view the Version tab. Alternatively, locate a version info file within the installation directoryAffected if The version displayed is 1.00.96 or any version number lower than 1.00.96
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Confirm the vulnerability applies to file parsingVerify that the installed version supports opening project or configuration files (common extensions include .dpj, .prj, or custom Delta file formats used by ScreenEditor)Affected if The software includes file open functionality for parsing external input files
The system is affected if CNCSoft ScreenEditor version 1.00.96 or prior is installed and the software is used to open files, as the out-of-bounds read occurs when parsing specially crafted input 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 dataDo not open untrusted or unexpected files in CNCSoft ScreenEditor until the vendor releases a patch. Verify file sources before opening any input files in the application.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-6976 — 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-2020-6976 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
- No spam, self-promotion, credentials, or personal data