CVE-2009-0085 in the critical feed json
The Secure Channel (aka SChannel) authentication component in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Go…
published 2009-03-10 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-0094
- cvss
- 7.1
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 15.2%
- EPSS 15.2% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
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."
Exploit prediction
15.19% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.1 | AV:N/AC:M/Au:N/C:N/I:C/A:N |
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2009/ms09-007
vendor-advisory
-
securitytracker.com
/id?1021828
vdb-entry
-
us-cert.gov
/cas/techalerts/TA09-069A.html
third-party-advisory, us-government-resource
-
vupen.com
/english/advisories/2009/0660
vdb-entry
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6011
vdb-entry, signature
-
secunia.com
/advisories/34215
third-party-advisory
-
osvdb.org
/52521
vdb-entry
Sources
- CVE List CVE-2009-0085
- NVD CVE-2009-0085
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