# CVE-2025-11694: Rockwell Automation CompactLogix 5370 Controllers – Multiple Vulnerabilities

> Attackers can cause denial of service on CompactLogix controllers by abusing exposed Connection IDs due to missing validation of sequence numbers and source IPs.

- **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-9r9c-rxhr-5hcg

## What is CVE-2025-11694?

CVE-2025-11694 is a high-severity missing authorization vulnerability in Rockwell Automation CompactLogix 5370, 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 security issue exists within 1769 CompactLogix controllers due to the missing validation of sequence numbers and source IP addresses in the CIP protocol. This allows attacker to abuse the exposed Connection ID’s visible on the web interface to perform denial-of-service attacks, resulting in a minor fault.

Weakness: CWE-354 (Improper Validation of Integrity Check Value)

## Which versions are affected by CVE-2025-11694?


## How do I fix CVE-2025-11694?

No fix has been published for CVE-2025-11694 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-11694 being exploited?

There is no known exploitation of CVE-2025-11694 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-11694 and fix it if it is affected.

What it is: CVE-2025-11694 is a high-severity missing authorization vulnerability in Rockwell Automation CompactLogix 5370, 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-2025-11694 in the wild and no public exploit code.

Affected product: Rockwell Automation CompactLogix 5370. 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-2025-11694/ (Markdown: https://insights.sbomify.com/CVE-2025-11694/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-11694
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-11694
- OSV: https://osv.dev/vulnerability/CVE-2025-11694

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From sbomify Insights: https://insights.sbomify.com/CVE-2025-11694/
Summaries are generated and may contain mistakes; the official description above is the record.