# CVE-2018-14781: Medtronic MiniMed MMT-500/MMT-503 Remote Controllers Authentication Bypass by Capture-replay

> Attackers can replay wireless signals to bypass authentication and trigger unauthorized insulin delivery on Medtronic pumps with specific remote features enabled.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Aug 2018
- **Updated:** 22 May 2025
- **Also known as:** GHSA-cv4q-4xgp-cr7m

## What is CVE-2018-14781?

CVE-2018-14781 is a medium-severity authentication bypass vulnerability in Medtronic MMT – 511 pump Paradigm, published on 13 Aug 2018. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Medtronic MiniMed MMT 

devices when paired with a remote controller and having the “easy bolus” and “remote bolus” options enabled (non-default), are vulnerable to a capture-replay attack. An attacker can capture the wireless transmissions between the remote controller and the pump and replay them to cause an insulin (bolus) delivery.

Weakness: CWE-287 (Improper Authentication), CWE-294 (Authentication Bypass by Capture-replay)

## Which versions are affected by CVE-2018-14781?

It affects 9 products.


Products: Medtronicdiabetes 508 Minimed Insulin Pump Firmware, Medtronicdiabetes 522 Paradigm Real-Time Firmware, Medtronicdiabetes 523 Paradigm Revel Firmware, Medtronicdiabetes 523k Paradigm Revel Firmware, Medtronicdiabetes 551 Minimed 530g Firmware, Medtronicdiabetes 722 Paradigm Real-Time Firmware, Medtronicdiabetes 723 Paradigm Revel Firmware, Medtronicdiabetes 723k Paradigm Revel Firmware, Medtronicdiabetes 751 Minimed 530g Firmware.

## How do I fix CVE-2018-14781?

No fix has been published for CVE-2018-14781 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-14781 being exploited?

There is no known exploitation of CVE-2018-14781 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-14781 and fix it if it is affected.

What it is: CVE-2018-14781 is a medium-severity authentication bypass vulnerability in Medtronic MMT – 511 pump Paradigm, published on 13 Aug 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-14781 in the wild and no public exploit code.

Affected product: Medtronic MMT – 511 pump Paradigm. 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-2018-14781/ (Markdown: https://insights.sbomify.com/CVE-2018-14781/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-14781
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-14781
- OSV: https://osv.dev/vulnerability/CVE-2018-14781

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From sbomify Insights: https://insights.sbomify.com/CVE-2018-14781/
Summaries are generated and may contain mistakes; the official description above is the record.