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01 Record

CVE-2026-6066

Unencrypted Client‑Server Communication in ConnectWise Automate™ Solution Center

HighPUBLISHEDCNA: ConnectWise
CNA base score7.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

02 Description

Unencrypted Client‑Server Communication in ConnectWise Automate™ Solution Center

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.08% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 0.2% of scored records. A rank, not a probability.
NVD base score
7.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-26.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-04-20 15:26Z6 MO AGO
Last updated
2026-04-20 16:13Z6 MO AGO
Reserved
2026-04-10
Assigning CNA
ConnectWise
Record state
PUBLISHED
Severity
High (CVSS 7.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Weaknesses
  • CWE-319Cleartext Transmission of Sensitive InformationBase
Data version
5.2
Document digest
9cde9e2d83456fea757359b10515f0f37598d84fb1840f89b0fe9c200fa195fe

05 Affected products

VendorProductVersionsPlatforms
ConnectWiseAutomateAll versions prior to 2026.4—

06 References

07 Remediation

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.