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Critical severity9.1NVD Advisory· Published Dec 11, 2025· Updated Jun 17, 2026

CVE-2025-14265

CVE-2025-14265

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

4
  • Connectwise/Screenconnect3 versions
    cpe:2.3:a:connectwise:screenconnect:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:connectwise:screenconnect:*:*:*:*:*:*:*:*range: <25.8.0.9438
    • (no CPE)range: <25.8
    • (no CPE)range: All versions prior to 2025.8
  • ScreenConnect/ScreenConnectllm-fuzzy
    Range: <25.8

Patches

Vulnerability mechanics

References

1

News mentions

0

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