CVE-2018-10596
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedMedtronic 2090 CareLink Programmer uses a virtual private network connection to securely download updates. It does not verify it is still connected to this virtual private network before downloading updates. The affected products initially establish an encapsulated IP-based VPN connection to a Medtronic-hosted update network. Once the VPN is established, it makes a request to a HTTP (non-TLS) server across the VPN for updates, which responds and provides any available updates. The programmer-side (client) service responsible for this HTTP request does not check to ensure it is still connected to the VPN before making the HTTP request. Thus, an attacker could cause the VPN connection to terminate (through various methods and attack points) and intercept the HTTP request, responding with malicious updates via a man-in-the-middle attack. The affected products do not verify the origin or integrity of these updates, as it insufficiently relied on the security of the VPN. An attacker with remote network access to the programmer could influence these communications.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe Medtronic 2090 CareLink Programmer establishes a VPN connection for secure update downloads but fails to verify the VPN remains active before making HTTP requests. It uses non-TLS HTTP across the VPN without validating the origin or integrity of updates, relying solely on VPN security. An attacker with remote network access can terminate the VPN and perform a man-in-the-middle attack, injecting malicious firmware updates.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE dataall versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- High
- Privileges
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the device modelCheck the physical device or system inventory for Medtronic 2090 CareLink Programmer. This is a specialized medical device programmer used for cardiac device management.Affected if The device is a Medtronic 2090 CareLink Programmer
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Verify the firmware versionAccess the device settings or system information menu to view the installed firmware version. All versions are affected.Affected if Any firmware version is installed on the Medtronic 2090 CareLink Programmer
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Confirm update download functionality is in useCheck if the device has been used or configured to download updates from Medtronic servers. The vulnerability applies when the update function is invoked.Affected if The device performs or has performed firmware/software updates via the network
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Verify VPN connection verification before downloadsAttempt an update download and observe whether the device checks that the VPN tunnel remains active before sending HTTP requests. The device should display VPN status or connection verification.Affected if The device does not verify VPN connectivity before initiating update downloads
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Check for TLS encryption on update requestsCapture network traffic from the device during an update attempt or review device documentation. The vulnerability exists when non-TLS HTTP is used for update downloads.Affected if Update requests use unencrypted HTTP rather than HTTPS/TLS
You are affected if you are using a Medtronic 2090 CareLink Programmer to perform network-based updates, as the device does not verify VPN remains active and uses unencrypted HTTP for update downloads.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataMedtronic must release a firmware update that adds VPN connection verification before downloads, implements TLS for update requests, and adds cryptographic verification of update integrity. Users should contact Medtronic for the official patch and avoid using the update function until patched.
- Consultation8.0 h
- Implementation4.0 h
- Testing12.0 h
- Review / QA6.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2018-10596 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2018-10596 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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