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Case File

CVE-2009-2509

HIGH · CVSS 9 EPSS 17.05% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-12-09 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 9.0. It affects Microsoft, Windows. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 17.1% probability of exploitation in the next 30 days. It may be remotely exploitable. Exploitation may require the attacker to be authenticated.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2009-2509
Severity
HIGH
CVSS
9
EPSS
17.05%
Microsoft Windows

Original NVD Description

Active Directory Federation Services (ADFS) in Microsoft Windows Server 2003 SP2 and Server 2008 Gold and SP2 does not properly validate headers in HTTP requests, which allows remote authenticated users to execute arbitrary code via a crafted request to an IIS web server, aka "Remote Code Execution in ADFS Vulnerability."