# CVE-2019-10955: Open redirect in CompactLogix 5370 L1 controllers

> Remote attackers can redirect users to malicious sites via open redirect flaws in Rockwell Automation PLC controllers, potentially leading to malware installation.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 25 Apr 2019
- **Updated:** 3 Jun 2026
- **Also known as:** GHSA-vm5j-x654-r2ww

## What is CVE-2019-10955?

CVE-2019-10955 is a medium-severity vulnerability in Rockwell Automation CompactLogix 5370 L1 controllers, published on 25 Apr 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

In Rockwell Automation MicroLogix 1400 Controllers Series A, All Versions Series B, v15.002 and earlier, MicroLogix 1100 Controllers v14.00 and earlier, CompactLogix 5370 L1 controllers v30.014 and earlier, CompactLogix 5370 L2 controllers v30.014 and earlier, CompactLogix 5370 L3 controllers (includes CompactLogix GuardLogix controllers) v30.014 and earlier, an open redirect vulnerability could allow a remote unauthenticated attacker to input a malicious link to redirect users to a malicious site that could run or download arbitrary malware on the user’s machine.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2019-10955?

It affects 6 products.


Products: Rockwellautomation Compactlogix 5370 L1 Firmware, Rockwellautomation Compactlogix 5370 L2 Firmware, Rockwellautomation Compactlogix 5370 L3 Firmware, Rockwellautomation Micrologix 1100 Firmware, Rockwellautomation Micrologix 1400 a Firmware, Rockwellautomation Micrologix 1400 B Firmware.

## How do I fix CVE-2019-10955?

No fix has been published for CVE-2019-10955 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-10955 being exploited?

There is no known exploitation of CVE-2019-10955 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-10955 and fix it if it is affected.

What it is: CVE-2019-10955 is a medium-severity vulnerability in Rockwell Automation CompactLogix 5370 L1 controllers, published on 25 Apr 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-10955 in the wild and no public exploit code.

Affected product: Rockwell Automation CompactLogix 5370 L1 controllers. 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-2019-10955/ (Markdown: https://insights.sbomify.com/CVE-2019-10955/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-10955
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-10955
- OSV: https://osv.dev/vulnerability/CVE-2019-10955

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-10955/
Summaries are generated and may contain mistakes; the official description above is the record.