CVE-2009-0234 json
The DNS Resolver Cache Service (aka DNSCache) in Windows DNS Server in Microsoft Windows 2000 SP4, Server 2003 SP1 and SP2, and Server 2008…
published 2009-03-11 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-0242
- cvss
- 6.4
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 34.4%
- EPSS 34.4% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known
Summary
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."
Exploit prediction
34.44% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:N/I:P/A:P |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2009/ms09-008
vendor-advisory
-
us-cert.gov
/cas/techalerts/TA09-069A.html
third-party-advisory, us-government-resource
-
vupen.com
/english/advisories/2009/0661
vdb-entry
-
secunia.com
/advisories/34217
third-party-advisory
-
kb.cert.org
/vuls/id/319331
third-party-advisory, us-government-resource
-
osvdb.org
/52518
vdb-entry
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5715
vdb-entry, signature
- support.avaya.com /elmodocs2/security/ASA-2009-083.htm
-
securityfocus.com
/bid/33988
vdb-entry
-
securitytracker.com
/id?1021831
vdb-entry
- blogs.technet.com /srd/archive/2009/03/13/ms09-008-dns-and-wins-server-security-update-in-more-detail.aspx
Sources
- CVE List CVE-2009-0234
- NVD CVE-2009-0234
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.