ConnectWise ScreenConnect Authentication Bypass Vulnerability

Critical Threat Advisory: This vulnerability is documented in active Ransomware campaigns. Immediate remediation required.

Technical Severity

CVSS v3.1 Metrics

CRITICAL

10 / 10

Minimal Risk Critical

Vector Specification

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

Exploitation Likelihood

EPSS Prediction

94.32 %

Predictive Probability

Percentile Rank

99.9 th

Documented as more likely to be exploited than 99.9% of known CVEs.

Detection Date

Feb 22, 2024

Remediation Due

Feb 29, 2024

CISA Catalog Active

Threat Analysis

ConnectWise ScreenConnect contains an authentication bypass vulnerability that allows an attacker with network access to the management interface to create a new, administrator-level account on affected devices.

Remediation Directive

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Asset Context

Vendor Identity

ConnectWise

Affected Product

ScreenConnect

Ransomware Status

Campaign Use Known

Weakness Classification

CWE-288

External Intelligence

https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2024-1709