# CVE-2020-16221: Memory corruption in Delta Electronics TPEditor

> Attackers can execute arbitrary code or cause denial of service by tricking users into opening a malicious project file in Delta Electronics TPEditor.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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:** 6 Aug 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-55mp-4rvf-4mgw

## What is CVE-2020-16221?

CVE-2020-16221 is a high-severity memory corruption vulnerability in Delta Electronics TPEditor, published on 6 Aug 2020. 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 Electronics TPEditor Versions 1.97 and prior. A stack-based buffer overflow may be exploited by processing a specially crafted project file. Successful exploitation of this vulnerability may allow an attacker to read/modify information, execute arbitrary code, and/or crash the application.

Weakness: CWE-787 (Out-of-bounds Write), CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2020-16221?

It affects 1 product.


Products: Deltaww Tpeditor.

## How do I fix CVE-2020-16221?

No fix has been published for CVE-2020-16221 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-16221 being exploited?

There is no known exploitation of CVE-2020-16221 in the wild and no public exploit code.

## Other vulnerabilities in Delta Electronics TPEditor

- [CVE-2018-8871](https://insights.sbomify.com/CVE-2018-8871/): Memory corruption in Automation TPEditor (critical 9.8)
- [CVE-2021-33007](https://insights.sbomify.com/CVE-2021-33007/): Memory corruption in Delta Electronics TPEditor (high 7.8)
- [CVE-2020-27284](https://insights.sbomify.com/CVE-2020-27284/): Memory corruption in TPEditor (high 7.8)
- [CVE-2020-27288](https://insights.sbomify.com/CVE-2020-27288/): Memory corruption in TPEditor (high 7.8)
- [CVE-2020-16219](https://insights.sbomify.com/CVE-2020-16219/): Memory corruption in Delta Electronics TPEditor (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-16221 and fix it if it is affected.

What it is: CVE-2020-16221 is a high-severity memory corruption vulnerability in Delta Electronics TPEditor, published on 6 Aug 2020. 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-2020-16221 in the wild and no public exploit code.

Affected product: Delta Electronics TPEditor. 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-2020-16221/ (Markdown: https://insights.sbomify.com/CVE-2020-16221/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-16221
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-16221
- OSV: https://osv.dev/vulnerability/CVE-2020-16221

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-16221/
Summaries are generated and may contain mistakes; the official description above is the record.