Critical Remote Code Execution Flaw in ColdFusion Reveals Zero-Interaction RCE Risk (CVE-2026-48281)

Overview

ColdFusion versions up to 2025.9 and 2023.20 suffer from a CVSS 10.0-rated vulnerability enabling unauthenticated remote code execution without user interaction. This zero-day flaw bypasses authentication mechanisms through improper input validation, posing an immediate risk to enterprise and DIB environments.

Technical Analysis

The vulnerability arises from insufficient validation of HTTP request parameters processed by ColdFusion's runtime components. Attackers need only craft malicious payloads targeting specific server endpoints to inject and execute arbitrary code. Network exposure of ColdFusion servers amplifies exploitability, as no user interaction or authentication credentials are required for execution.

Enterprise & DIB Impact

DIB organizations using affected ColdFusion versions face catastrophic potential outcomes including full system compromise, intellectual property theft, and operational disruption. The lack of authentication requirements reduces the technical barrier for exploitation, increasing likelihood of automated scanner detection by threat actors targeting critical infrastructure.

Recommended Actions

• Upgrade to ColdFusion 2025.10 or 2023.21 immediately
• deploy WAF rules to block anomalous HTTP parameter patterns
• restrict ColdFusion endpoint access to internal networks only
• monitor server logs for unexpected process creation
• enable SIEM alerts for RCE indicators like suspicious shell commands.