# CVE-2021-22824: Denial of service in Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21320 and prior)

> A buffer overflow in the SCADA Data Collector allows remote attackers to cause a denial of service via crafted network messages.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Feb 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-rcg3-66pc-3vp9

## What is CVE-2021-22824?

CVE-2021-22824 is a high-severity denial of service vulnerability in Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21320 and prior), published on 11 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could result in denial of service, due to missing length check on user-supplied data from a constructed message received on the network. Affected Product: Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21320 and prior)

Weakness: CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2021-22824?

It affects 1 product.


Products: Schneider-Electric Interactive Graphical Scada System Data Collector.

## How do I fix CVE-2021-22824?

No fix has been published for CVE-2021-22824 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-22824 being exploited?

There is no known exploitation of CVE-2021-22824 in the wild and no public exploit code.

## Other vulnerabilities in Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21320 and prior)

- [CVE-2021-22802](https://insights.sbomify.com/CVE-2021-22802/): Memory corruption in Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior) (critical 9.8)
- [CVE-2021-22803](https://insights.sbomify.com/CVE-2021-22803/): File upload in Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior) (critical 9.8)
- [CVE-2021-22805](https://insights.sbomify.com/CVE-2021-22805/): Missing authorization in Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior) (critical 9.1)
- [CVE-2021-22823](https://insights.sbomify.com/CVE-2021-22823/): Missing authorization in Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21320 and prior) (critical 9.1)
- [CVE-2021-22804](https://insights.sbomify.com/CVE-2021-22804/): Path traversal in Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior) (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-22824 and fix it if it is affected.

What it is: CVE-2021-22824 is a high-severity denial of service vulnerability in Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21320 and prior), published on 11 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-22824 in the wild and no public exploit code.

Affected product: Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21320 and prior). 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-2021-22824/ (Markdown: https://insights.sbomify.com/CVE-2021-22824/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-22824
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-22824
- OSV: https://osv.dev/vulnerability/CVE-2021-22824

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-22824/
Summaries are generated and may contain mistakes; the official description above is the record.