CVE-2026-6066 | Unencrypted Client‑Server Communication in ConnectWise Automate™ Solution Center

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.

Published: 2026-04-20 Last update: 2026-04-23 Assigner: 7d616e1a-3288-43b1-a0dd-0a65d3e70a49 Source: 7d616e1a-3288-43b1-a0dd-0a65d3e70a49
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-6066 is rated Low Risk (29.1/100): CVSS High severity, with low exploitation likelihood (EPSS 0.01%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-6066

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-21 — 0.01% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-6066

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 4.2 7d616e1a-3288-43b1-a0dd-0a65d3e70a49

Weakness enumeration for CVE-2026-6066

GitHub Security Advisory for CVE-2026-6066

GHSA-h2v9-xpqq-69hx · Severity: high — ConnectWise has released a security update for ConnectWise Automate™ that addresses a behavior in...

Affected software / configurations for CVE-2026-6066

Vendor Product Version Raw CPE
connectwise automate < 2026.4 cpe:2.3:a:connectwise:automate:*:*:*:*:*:*:*:*

References for CVE-2026-6066

cvelogic Threat Intelligence