CVE-2009-0550

critical Microsoft
CVSS v3 Base Score
9.3
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS Score
38.6%
Exploitation probability in 30 days
Top 3% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
M
Confidentiality
C
Integrity
C
Availability
C
Published: April 15, 2009 (6238 days ago)
Last Modified: April 23, 2026
Vendor: Microsoft
Source: 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."

CWE

NVD-CWE-Other

Affected Products

microsoft windows 2000microsoft windows server 2003microsoft windows server 2008microsoft windows vistamicrosoft windows xpmicrosoft iemicrosoft internet explorer

References

🔗 blogs.technet.com 🔗 osvdb.org 🔗 secunia.com 🔗 secunia.com 🔗 support.avaya.com