SB2025121154 - Insecure update installation in ConnectWise ScreenConnect
Published: December 11, 2025
Security Bulletin ID
SB2025121154
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Download of code without integrity check (CVE-ID: CVE-2025-14265)
CWE-ID: CWE-494 - Download of Code Without Integrity Check
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise the affected system
The vulnerability exists due to software does not perform software integrity check when downloading updates. A remote attacker with ability to perform man-in-the-middle (MitM) attack can trick the victim into installing a malicious software update and compromise the affected system.
Remediation
Install update from vendor's website.