CVE-2009-0234
The DNS Resolver Cache Service (aka DNSCache) in Windows DNS Server in Microsoft Windows 2000 SP4, Server 2003 SP1 and SP2, and Server 2008 does not properly cache crafted DNS responses, which makes it easier for remote attackers to predict transaction IDs and poison caches by sending many crafted DNS queries that trigger "unnecessary lookups," aka "DNS Server Response Validation Vulnerability."
Key facts
- CVSS score
- 6.4 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:P/A:P- Weakness (CWE)
- CWE-20
- EPSS score
- 34.4% (98th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-0242)
- Published
- March 11, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-0242 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
Certified products that may be affected
11 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 11 in the Security Certifications Explorer.
References
- http://blogs.technet.com/srd/archive/2009/03/13/ms09-008-dns-and-wins-server-security-update-in-more-detail.aspx
- http://osvdb.org/52518
- http://secunia.com/advisories/34217
- http://support.avaya.com/elmodocs2/security/ASA-2009-083.htm
- http://www.kb.cert.org/vuls/id/319331(US Government Resource)
- http://www.securityfocus.com/bid/33988
- http://www.securitytracker.com/id?1021831
- http://www.us-cert.gov/cas/techalerts/TA09-069A.html(US Government Resource)
- http://www.vupen.com/english/advisories/2009/0661
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-008
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5715
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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