Do Son 
TL;DR
CVE-2026-48282, a critical CVSS 10 ColdFusion arbitrary code execution vulnerability, is under active attack. Hackers are exploiting this path traversal flaw in the wild. Administrators must apply emergency patches immediately to prevent server takeovers.
Why It Matters
Adobe ColdFusion hosts critical enterprise applications worldwide. This ColdFusion arbitrary code execution vulnerability requires absolutely no user interaction. Attackers can take full control of targeted servers remotely. The Canadian Centre for Cyber Security warns that active exploitation is currently ongoing. Furthermore, threat intelligence data confirms these attacks began within two hours of public disclosure. Install numbers remain unconfirmed officially, but thousands of enterprises run vulnerable ColdFusion servers.
How the Attack Works
The defect involves a severe path traversal error. Path traversal bugs are incredibly dangerous for web servers. The software fails to properly limit a pathname to a restricted directory. Hackers send specially crafted network requests to bypass these directory restrictions. Consequently, they run malicious code in the context of the current user. Ryan Dewhurst observed this exact mechanism triggering within a global honeypot network. An attacker operating from an Indian IP address successfully exploited the flaw to gain access.
Affected Versions
This vulnerability impacts several recent product releases. ColdFusion 2025 Update 9 and all earlier versions remain vulnerable. Additionally, ColdFusion 2023 Update 20 and earlier versions contain the defect.
Patch and Mitigation Steps
Adobe released emergency security patches to fix this severe issue. System administrators must install ColdFusion 2025 Update 10 or ColdFusion 2023 Update 21. Review the official Adobe security advisory for detailed deployment instructions. Apply these updates immediately to secure your environment against this active threat. Segment your web servers from internal networks to limit potential damage.
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