CVE Watch12 sept 2026

CVE-2026-84869

ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability

CVSS

9.9

Crítico

EPSS

0.9%

p60

KEV

SÍ

11 sept 2026

Exploit Today

0-100

Publicado: 8 sept 2026 · Última mod.: 12 sept 2026 · CWE-269 · CWE-862

EPSS · 30d

0.9%EPSS · 30 días0.9%

2026-09-252026-10-23

Ficha del catálogo KEV

Producto

ConnectWise / ScreenConnect

Vulnerabilidad

ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability

Añadido a KEV

11 sept 2026

Remediar antes de

14 sept 2026

Uso conocido en ransomware

Descripción resumida

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.

Acción requerida

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.

Notas

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

Descripción técnica

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.

Referencias oficiales

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