CVE-2025-14265

CRITICAL

ScreenConnect <25.8 - Code Injection

Title source: llm

Description

In versions of ScreenConnect™ prior to 25.8, server-side validation and integrity checks within the extension subsystem could allow the installation and execution of untrusted or arbitrary extensions by authorized or administrative users. Abuse of this behavior could result in the execution of custom code on the server or unauthorized access to application configuration data. This issue affects only the ScreenConnect server component; host and guest clients are not impacted. ScreenConnect 25.8 introduces enhanced server-side configuration handling and integrity checks to ensure only trusted extensions can be installed.

Scores

CVSS v3 9.1
EPSS 0.0006
EPSS Percentile 16.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Classification

CWE
CWE-494
Status published

Affected Products (1)

connectwise/screenconnect < 25.8.0.9438

Timeline

Published Dec 11, 2025
Tracked Since Feb 18, 2026