Vulnerability Intelligence Report
Improper server-side validation in ScreenConnect extension framework
CVE-2025-14265
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.
No Active Exploit Signals
CVSS Base Score
9.1
CRITICAL
Exploitability:2.3
Impact Score:6.1
EPSS Probability:0.32%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
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Weaknesses (CWE)
CWE-494 ↗CWE-494 Download of Code Without Integrity Check
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| ConnectWise | ScreenConnect | All versions prior to 2025.8 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.324%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | ConnectWise LLC · Vendor · USA |
| Reserved | 2025-12-08T12:25:20 |
| Published | 2025-12-11T14:21:53 |
| Last Updated | 2026-02-26T16:21:03 |
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