# CVE-2024-21916: Rockwell Automation Denial-of-service Vulnerability in ICE1 Controller

> Attackers can cause a major nonrecoverable fault in Rockwell ControlLogix and GuardLogix controllers, forcing a device restart.

- **Severity:** High 8.6 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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:** 31 Jan 2024
- **Updated:** 1 Aug 2024
- **Also known as:** GHSA-2798-r58g-fffv

## What is CVE-2024-21916?

CVE-2024-21916 is a high-severity denial of service vulnerability in Rockwell Automation ControlLogix® 5570, published on 31 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A denial-of-service vulnerability exists in specific Rockwell Automation ControlLogix ang GuardLogix controllers. If exploited, the product could potentially experience a major nonrecoverable fault (MNRF). The device will restart itself to recover from the MNRF.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2024-21916?

It affects 3 products.


Products: Rockwellautomation Controllogix 5570 Controller Firmware, Rockwellautomation Controllogix 5570 Redundant Controller Firmware, Rockwellautomation Guardlogix 5570 Controller Firmware.

## How do I fix CVE-2024-21916?

No fix has been published for CVE-2024-21916 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-21916 being exploited?

There is no known exploitation of CVE-2024-21916 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-21916 and fix it if it is affected.

What it is: CVE-2024-21916 is a high-severity denial of service vulnerability in Rockwell Automation ControlLogix® 5570, published on 31 Jan 2024. 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-2024-21916 in the wild and no public exploit code.

Affected product: Rockwell Automation ControlLogix® 5570. 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-2024-21916/ (Markdown: https://insights.sbomify.com/CVE-2024-21916/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-21916
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-21916
- OSV: https://osv.dev/vulnerability/CVE-2024-21916

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-21916/
Summaries are generated and may contain mistakes; the official description above is the record.