CVE-2025-14265
9.1 · CRITICALOverview
CVE-2025-14265 is a critical-severity vulnerability affecting connectwise screenconnect. It was published on December 11, 2025 and has a CVSS 3.1 base score of 9.1 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from connectwise. Update screenconnect to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| connectwise | screenconnect | >= 0, < 25.8.0.9438 | Affected |
Frequently Asked Questions
What is CVE-2025-14265?
CVE-2025-14265 is a critical-severity vulnerability affecting connectwise screenconnect. It was published on December 11, 2025 and has a CVSS 3.1 base score of 9.1 (CRITICAL).
How severe is CVE-2025-14265?
This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2025-14265?
Check the references section for vendor advisories and patches from connectwise. Update screenconnect to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-14265?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-14265 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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