# CVE-2026-11317: Rockwell Automation Logix 5370 and 5570 Controllers Vulnerable To Denial of Service Via CIP

> Attackers can cause a major nonrecoverable fault in Rockwell Logix controllers by sending crafted CIP messages, requiring a program download to recover.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Jun 2026
- **Updated:** 16 Jun 2026
- **Also known as:** GHSA-mc6f-7cr6-6cwg

## What is CVE-2026-11317?

CVE-2026-11317 is a high-severity denial of service vulnerability in Rockwell Automation CompactLogix, ControlLogix, published on 16 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A denial of service security issue exists in the
affected product. The security issue stems from a fault occurring when a
crafted CIP message is sent. Devices with less memory are more likely to be
affected. This can result in a major nonrecoverable fault (MNRF). A program
download is required to recover.

Weakness: CWE-404 (Improper Resource Shutdown or Release)

## Which versions are affected by CVE-2026-11317?


## How do I fix CVE-2026-11317?

No fix has been published for CVE-2026-11317 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-11317 being exploited?

There is no known exploitation of CVE-2026-11317 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11317 and fix it if it is affected.

What it is: CVE-2026-11317 is a high-severity denial of service vulnerability in Rockwell Automation CompactLogix, ControlLogix, published on 16 Jun 2026. 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-2026-11317 in the wild and no public exploit code.

Affected product: Rockwell Automation CompactLogix, ControlLogix. 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-2026-11317/ (Markdown: https://insights.sbomify.com/CVE-2026-11317/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11317
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11317
- OSV: https://osv.dev/vulnerability/CVE-2026-11317

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11317/
Summaries are generated and may contain mistakes; the official description above is the record.