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Case File

CVE-2009-0550

HIGH · CVSS 9.3 EPSS 11.84%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-04-15 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 9.3. It affects Microsoft, Windows. Its EPSS score suggests a 11.8% probability of exploitation in the next 30 days. It may be remotely exploitable.

CVE
CVE-2009-0550
Severity
HIGH
CVSS
9.3
EPSS
11.84%
Microsoft Windows

Original NVD Description

Windows HTTP Services (aka WinHTTP) in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008; and WinINet in Microsoft Internet Explorer 5.01 SP4, 6 SP1, 6 and 7 on Windows XP SP2 and SP3, 6 and 7 on Windows Server 2003 SP1 and SP2, 7 on Windows Vista Gold and SP1, and 7 on Windows Server 2008; allows remote web servers to capture and replay NTLM credentials, and execute arbitrary code, via vectors related to absence of a "credential-reflection protections" opt-in step, aka "Windows HTTP Services Credential Reflection Vulnerability" and "WinINet Credential Reflection Vulnerability."