CVE-2026-6066
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 · uneditedConnectWise has released a security update for ConnectWise Automate™ that addresses a behavior in the ConnectWise Automate Solution Center where certain client-to-server communications could occur without transport-layer encryption. This could allow network‑based interception of Solution Center traffic in Automate deployments. The issue has been resolved in Automate 2026.4 by enforcing secure communication for affected Solution Center connections.
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 confidenceConnectWise Automate Solution Center transmits certain client-to-server communications without transport-layer encryption (TLS/SSL), allowing network-based attackers to intercept sensitive traffic via man-in-the-middle attacks. The vulnerability is resolved in version 2026.4 which enforces secure communications for affected Solution Center connections.
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 data< 2026.4CVSS 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
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
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 installed ConnectWise Automate versionCheck the Automate server or use the built-in About/Version information (typically found in the Control Center or via the installer details) to determine the exact version numberAffected if Version is below 2026.4
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Confirm Solution Center module is activeAccess the Automate Control Center and navigate to the Solution Center section, or check the modules list to verify if Solution Center is enabled and in useAffected if Solution Center module is enabled and in use on a vulnerable version
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Verify communication encryption statusUse network packet capture tools (such as Wireshark) to capture Solution Center traffic between client and server, then inspect whether the traffic is transmitted over TLS/SSL (port 443 or similar encrypted protocols) or unencrypted (port 80 or other clear-text protocols)Affected if Solution Center traffic is observed transmitting in cleartext without TLS/SSL encryption
If ConnectWise Automate is installed at a version below 2026.4 and the Solution Center module is actively being used, the environment is likely vulnerable to unencrypted traffic interception.
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.
dbcve · scoped2026.4
Upgrade ConnectWise Automate to version 2026.4 or later to enable forced TLS encryption for Solution Center traffic, and verify that all client-server communications now use encrypted channels.
Automate 2026.4
- Back up the current ConnectWise Automate installation and database before starting the upgrade process
- Download Automate version 2026.4 from the official ConnectWise partner portal or download center
- Review ConnectWise upgrade documentation for any prerequisite requirements
- Apply the upgrade to Automate following the standard ConnectWise upgrade procedure
- After upgrade, verify that the Solution Center is functioning properly and that secure communications are enforced
- Confirm the version number displays as 2026.4 in the Automate interface
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-6066 — 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-2026-6066 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
- No weaponised exploit code, or anything meant to cause harm
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