# CVE-2021-22807: Memory corruption in n/a

> An out-of-bounds write vulnerability in the GUIcon tool allows arbitrary code execution when a malicious configuration file is loaded.

- **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:** 28 Jan 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-hgrg-c42g-vhwp

## What is CVE-2021-22807?

CVE-2021-22807 is a high-severity memory corruption vulnerability in n/a, published on 28 Jan 2022. 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

A CWE-787: Out-of-bounds Write vulnerability exists that could cause arbitrary code execution when a malicious *.gd1 configuration file is loaded into the GUIcon tool. Affected Product: Eurotherm by Schneider Electric GUIcon Version 2.0 (Build 683.003) and prior

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2021-22807?

It affects 1 product.


Products: Schneider-Electric Guicon.

## How do I fix CVE-2021-22807?

No fix has been published for CVE-2021-22807 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-22807 being exploited?

There is no known exploitation of CVE-2021-22807 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-22808](https://insights.sbomify.com/CVE-2021-22808/): Use after free in n/a (high 7.8)
- [CVE-2018-7813](https://insights.sbomify.com/CVE-2018-7813/): Memory corruption in Eurotherm by Schneider Electric GUIcon V2.0 (Gold Build 683.0) (high 7.8)
- [CVE-2018-7814](https://insights.sbomify.com/CVE-2018-7814/): Memory corruption in Eurotherm by Schneider Electric GUIcon V2.0 (Gold Build 683.0) (high 7.8)
- [CVE-2018-7815](https://insights.sbomify.com/CVE-2018-7815/): Memory corruption in Eurotherm by Schneider Electric GUIcon V2.0 (Gold Build 683.0) (high 7.8)
- [CVE-2021-22809](https://insights.sbomify.com/CVE-2021-22809/): Information disclosure in n/a (medium 5.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-22807 and fix it if it is affected.

What it is: CVE-2021-22807 is a high-severity memory corruption vulnerability in n/a, published on 28 Jan 2022. 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-2021-22807 in the wild and no public exploit code.

Affected product: n/a. 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-2021-22807/ (Markdown: https://insights.sbomify.com/CVE-2021-22807/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-22807
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-22807
- OSV: https://osv.dev/vulnerability/CVE-2021-22807

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-22807/
Summaries are generated and may contain mistakes; the official description above is the record.