# CVE-2019-6547: Memory corruption in Delta Industrial Automation CNCSoft

> An out-of-bounds read in Delta CNCSoft ScreenEditor allows attackers to crash the software via malicious project files.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 28 Feb 2019
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-vj48-mm4h-98qc

## What is CVE-2019-6547?

CVE-2019-6547 is a medium-severity memory corruption vulnerability in ICS-CERT Delta Industrial Automation CNCSoft, published on 28 Feb 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

Delta Industrial Automation CNCSoft, CNCSoft ScreenEditor Version 1.00.84 and prior. An out-of-bounds read vulnerability may cause the software to crash due to lacking user input validation for processing project files.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2019-6547?

It affects 1 product.


Products: Deltaww Screeneditor.

## How do I fix CVE-2019-6547?

No fix has been published for CVE-2019-6547 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-6547 being exploited?

There is no known exploitation of CVE-2019-6547 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-6547 and fix it if it is affected.

What it is: CVE-2019-6547 is a medium-severity memory corruption vulnerability in ICS-CERT Delta Industrial Automation CNCSoft, published on 28 Feb 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-6547 in the wild and no public exploit code.

Affected product: ICS-CERT Delta Industrial Automation CNCSoft. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2019-6547/ (Markdown: https://insights.sbomify.com/CVE-2019-6547/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-6547
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-6547
- OSV: https://osv.dev/vulnerability/CVE-2019-6547

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-6547/
Summaries are generated and may contain mistakes; the official description above is the record.