by Kastro
Paper/Archive/CVE-2026-127063

CVE-2026-127063

DataComm RMM+ — The third-party RMM+ extension for ConnectWise ScreenConnect uses a static API secret by default.

CVSS 9.3
critical.is priorityof 100
28
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0No EPSS score.000 × 200.0No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

The third-party RMM+ extension for ConnectWise ScreenConnect uses a static API secret by default. The value can be changed by an administrator; however, environments retaining the default value may allow unauthorized access to extension API functionality, including the ability to send commands to managed agents. This issue is specific to the third-party extension and does not affect the ScreenConnect server or client. Scope: This issue affects the third-party RMM+ extension for ConnectWise ScreenConnect. Deployments without the extension are not affected. ScreenConnect server or client software are not impacted.

Affected

ProductAffectedFixed inSource
RMM+All extension versions–CNA

Scores by source

ConnectWise (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

refgithub.com/ConnectWise-Advisories/Disclosures/tree/main/CVE-2026-127063