CVE-2026-84869

ConnectWise ScreenConnect: Improper Privilege Management and Missing Authorization

As of , CVE-2026-84869 in ConnectWise ScreenConnect is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch now.

Exploited
Yes: CISA listed it on 11 September 2026
US federal deadline
14 September 20263 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
Forensic triage
Required by CISA under BOD 26-04Agencies must also look for signs that attackers already got in.
EPSS score
0.01Higher than 59% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
Vendor advice: www.connectwise.comLinks below, from CISA's entry.

What CISA says to do

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 required action

What the flaw is

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

CISA's description

A condition in the ScreenConnect client may allow files to be transferred and executed through an active remote session without authorization or Host confirmation in certain circumstances. ScreenConnect servers are not impacted.

The CVE record's description, from ConnectWise

CVE published
8 September 2026
Assigned by
ConnectWise
CVSS
9.9 Critical (CVSS 3.1, from the CNA)
CWE-862
Missing Authorization
CWE-269
Improper Privilege Management
CISA SSVC, exploitation
active
CISA SSVC, automatable
no
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. The US federal deadline to fix it.
  4. CISA changed its entry. Edited: description.

ScreenConnect: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2024-1708Path TraversalConnectWise ScreenConnectPatch nowRansomware use, listed within a year; Metasploit module0.95
CVE-2024-1709Authentication BypassConnectWise ScreenConnectPatch this weekRansomware use; Metasploit module; EPSS 0.990.99
CVE-2025-3935Improper AuthenticationConnectWise ScreenConnectPatch soon0.04

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