CVE-2026-84869

CVE Enrichment

CVSS: 9.9 CRITICAL
EPSS: 0.92%
EPSS Percentile: 59.34%
CISA KEV: YES — Known Exploited Vulnerability

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.

Technical Details

CVSS Version: 3.1
CNA / NVD Source: 7d616e1a-3288-43b1-a0dd-0a65d3e70a49
Published: 09-Sep-2026 03:18
Last Modified: 12-Sep-2026 11:16
EPSS Date: 2026-10-12
CWE: CWE-269, CWE-862

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:L /
                            UI:N /
                            S:C /
                            C:H /
                            I:H /
                            A:H

CISA KEV Details

Date Added: 2026-09-11
Remediation Due: 2026-09-14
Known Ransomware Campaign Use: Unknown
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.
Notes: https://www.connectwise.com/company/trust/security-bulletins/2026-09-08-screenconnect-bulletin ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-84869

Affected Products / Versions

connectwise / screenconnect
Version / affected range: * · before (exclusive) 26.6.5.9742
cpe:2.3:a:connectwise:screenconnect:*:*:*:*:*:*:*:*

References

Last enrichment sync: 13-Oct-2026 06:24
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

has released a security update to address a vulnerability in ScreenConnect. The vulnerability (CVE-2026-84869) ranks 9.9 on the CVSS scale. According to ConnectWise, earlier versions of ScreenConnect's Client Huntress Details Worm-Like Campaign Spreading Malicious Scripts Through ScreenConnect

Malware (1)

People (8)

MITRE ATT&CK (12)

Vendors (1)

Products (6)

Tools (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.