CVE-2009-0085
The Secure Channel (aka SChannel) authentication component in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008, when certificate authentication is used, does not properly validate the client's key exchange data in Transport Layer Security (TLS) handshake messages, which allows remote attackers to spoof authentication by crafting a TLS packet based on knowledge of the certificate but not the private key, aka "SChannel Spoofing Vulnerability."
Key facts
- CVSS score
- 7.1 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:C/A:N- Weakness (CWE)
- CWE-287
- EPSS score
- 15.2% (97th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-0094)
- Published
- March 10, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-0094 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- microsoft / windows 2000
- microsoft / windows server 2003
- microsoft / windows server 2003
- microsoft / windows server 2003
- microsoft / windows server 2003
- microsoft / windows server 2008
- microsoft / windows server 2008
- microsoft / windows server 2008
- microsoft / windows vista
- microsoft / windows vista
- microsoft / windows vista
- microsoft / windows xp
- microsoft / windows xp
- microsoft / windows xp
- microsoft / windows xp
Certified products that may be affected
21 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Microsoft Windows Server 2008 R2 Hyper-V Release 6.1.7600 - Microsoft Corporation - Common Criteria BSI-DSZ-CC-0755-2012 - archived
- Microsoft Windows 7, Microsoft Windows Server 2008 R2 - Microsoft Corporation - Common Criteria CCEVS-VR-10390-2010 - archived
- Windows Server 2008 R2 BitLocker™ Drive Encryption - Microsoft Corporation - FIPS 140 1339 - historical
- Windows Server 2008 R2 Enhanced Cryptographic Provider (RSAENH) - Microsoft Corporation - FIPS 140 1337 - historical
- Microsoft Windows Server 2008 R2 Kernel Mode Cryptographic Primitives Library (cng.sys) - Microsoft Corporation - FIPS 140 1335 - historical
See all 21 in the Security Certifications Explorer.
References
- http://osvdb.org/52521
- http://secunia.com/advisories/34215
- http://www.securitytracker.com/id?1021828
- http://www.us-cert.gov/cas/techalerts/TA09-069A.html(US Government Resource)
- http://www.vupen.com/english/advisories/2009/0660
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-007
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6011
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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