# CVE-2020-12005: Denial of service in FactoryTalk Linx, RSLinx Classic, Connected Components Workbench, ControlFLASH Plus, FactoryTalk Asset Centre, FactoryTalk Linx CommDTM, Studio 5000 Launcher, Studio 5000 Logix Designer software

> Attackers can cause denial of service by uploading malicious EDS files with bad compression to FactoryTalk Linx and related industrial software.

- **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:** 15 Jun 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-p9x7-h752-wp55

## What is CVE-2020-12005?

CVE-2020-12005 is a high-severity denial of service vulnerability in FactoryTalk Linx, RSLinx Classic, Connected Components Workbench, ControlFLASH Plus, FactoryTalk Asset Centre, FactoryTalk Linx CommDTM, Studio 5000 Launcher, Studio 5000 Logix Designer software, published on 15 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

FactoryTalk Linx versions 6.00, 6.10, and 6.11, RSLinx Classic v4.11.00 and prior,Connected Components Workbench: Version 12 and prior, ControlFLASH: Version 14 and later, ControlFLASH Plus: Version 1 and later, FactoryTalk Asset Centre: Version 9 and later, FactoryTalk Linx CommDTM: Version 1 and later, Studio 5000 Launcher: Version 31 and later Stud, 5000 Logix Designer software: Version 32 and prior is vulnerable. A vulnerability exists in the communication function that enables users to upload EDS files by FactoryTalk Linx. This may allow an attacker to upload a file with bad compression, consuming all the available CPU resources, leading to a denial-of-service condition.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2020-12005?

It affects 2 products.


Products: Rockwellautomation Factorytalk Linx, Rockwellautomation Rslinx Classic.

## How do I fix CVE-2020-12005?

No fix has been published for CVE-2020-12005 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-12005 being exploited?

There is no known exploitation of CVE-2020-12005 in the wild and no public exploit code.

## Other vulnerabilities in FactoryTalk Linx, RSLinx Classic, Connected Components Workbench, ControlFLASH Plus, FactoryTalk Asset Centre, FactoryTalk Linx CommDTM, Studio 5000 Launcher, Studio 5000 Logix Designer software

- [CVE-2020-27251](https://insights.sbomify.com/CVE-2020-27251/): Memory corruption in FactoryTalk Linx (critical 9.8)
- [CVE-2020-12001](https://insights.sbomify.com/CVE-2020-12001/): Path traversal in FactoryTalk Linx, RSLinx Classic, Connected Components Workbench, ControlFLASH Plus, FactoryTalk Asset Centre, FactoryTalk Linx CommDTM, Studio 5000 Launcher, Studio 5000 Logix Designer software (critical 9.8)
- [CVE-2025-9067](https://insights.sbomify.com/CVE-2025-9067/): Rockwell Automation FactoryTalk® Linx Privilege Escalation Vulnerabilities (high 8.5)
- [CVE-2025-9068](https://insights.sbomify.com/CVE-2025-9068/): Rockwell Automation FactoryTalk® Linx Privilege Escalation Vulnerabilities (high 8.5)
- [CVE-2025-7972](https://insights.sbomify.com/CVE-2025-7972/): Rockwell Automation FactoryTalk® Linx Network Browser Security Bypass Vulnerability (high 8.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-12005 and fix it if it is affected.

What it is: CVE-2020-12005 is a high-severity denial of service vulnerability in FactoryTalk Linx, RSLinx Classic, Connected Components Workbench, ControlFLASH Plus, FactoryTalk Asset Centre, FactoryTalk Linx CommDTM, Studio 5000 Launcher, Studio 5000 Logix Designer software, published on 15 Jun 2020. 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-2020-12005 in the wild and no public exploit code.

Affected product: FactoryTalk Linx, RSLinx Classic, Connected Components Workbench, ControlFLASH Plus, FactoryTalk Asset Centre, FactoryTalk Linx CommDTM, Studio 5000 Launcher, Studio 5000 Logix Designer software. 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-2020-12005/ (Markdown: https://insights.sbomify.com/CVE-2020-12005/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-12005
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-12005
- OSV: https://osv.dev/vulnerability/CVE-2020-12005

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-12005/
Summaries are generated and may contain mistakes; the official description above is the record.