CVE-2026-6066Unencrypted Client‑Server Communication in ConnectWise Automate™ Solution Center
- 7.1HighCVSS base score
- 0.08%Exploitation in 30 daysEPSS · top 100% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
ConnectWise 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.
Timeline
ID reserved
By ConnectWise
- 10 days later
· 10 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ConnectWiseCNA (assigner) | 3.1 | High7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
| NVDNVD · Analyzed | 3.1 | High7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.08% · top 100% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Affected products
- affected All versions prior to 2026.4
What to do
Solution: Remediation Cloud: No action is required. On-Premise: Apply the 2026.4 release. For instruction on updating to the newest release, please reference this doc: Automate Release Notes Version 2026 - ConnectWise https://docs.connectwise.com/ConnectWise_Automate_Documentation/100/Automate_Release_Notes_Version_2026 After applying the update, on-premises customers must ensure the following configurations are in place: * An SSL certificate is bound to the Solution Center on port 8484 to establish secure communication. Refer to the ConnectWise documentation for configuration steps: Solution Center Client and Service HTTPS Update - ConnectWise * In some environments, antivirus or endpoint protection products may interfere with the Automate patch installer or service behavior during upgrades. If issues are encountered during installation or startup, refer to the ConnectWise documentation for recommended antivirus exclusions: Automate Antivirus Exclusions for Windows https://docs.connectwise.com/ConnectWise_Automate_Documentation/060/040/010 * Ensure that the LTShare has a minimum of 1 GB of free disk space prior to installation. If you experience issues completing the update or required configuration steps, please contact ConnectWise Support for assistance.
References
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-23875 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-6066)Record last updated .