SB2024022121 - Multiple vulnerabilities in ConnectWise ScreenConnect



SB2024022121 - Multiple vulnerabilities in ConnectWise ScreenConnect

Published: February 21, 2024 Updated: April 28, 2026

Security Bulletin ID SB2024022121
CSH Severity
Critical
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Critical 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Authentication bypass using an alternate path or channel (CVE-ID: CVE-2024-1709)

CWE-ID: CWE-288 - Authentication Bypass Using an Alternate Path or Channel

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red


The vulnerability allows a remote attacker to bypass authentication.

The vulnerability exists due to improper authentication. A remote non-authenticated attacker can bypass authentication process and gain full access to the system.

Note, the vulnerability is being actively exploited in the wild.


2) Path traversal (CVE-ID: CVE-2024-1708)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Clear


The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote privileged user can send a specially crafted HTTP request and read arbitrary files on the system.


Remediation

Install update from vendor's website.