Exploited· due 2026-09-149.9criticalCritical

CVE-2026-84869

ConnectWise ScreenConnect

ConnectWise ScreenConnect contains both an improper privilege management and missing authorization vulnerability that may allow an attacker to file transfer and execution through an active remote sessions without authorization or host confirmation.

Exploitation status

CISA has confirmed this is being exploited in the wild. That is an observation of real attacks, not a prediction.
US federal civilian agencies are required to remediate it by 2026-09-14. That deadline does not bind private companies, but it is a reasonable benchmark for how urgently CISA views it.
A vendor advisory or patch reference has been published.

Required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

CISA’s wording, unedited.

What the metrics mean

It is reachable over a network, without needing local access.
For an attacker who can reach it, no special conditions are needed to exploit it.
To exploit it, an ordinary user account is needed.
Beyond that, no action by a user is required.

Scoring

CVSS: 9.9 (v3.1)
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness: CWE-269
Assigned by: 7d616e1a-3288-43b1-a0dd-0a65d3e70a49

Dates

Published: 2026-09-11
Last modified: 2026-09-12
Added to KEV: 2026-09-11
Remediation due: 2026-09-14
Sources: CISA KEV, NVD

Affected products

Connectwise Screenconnect- 26.6.5.9742

As listed in the NVD configuration data. Not a statement about your estate.