CVE-2009-0234 : The DNS Resolver Cache Service (aka DNSCache) in Windows DNS Server in Microsoft

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."

Published 2009-03-11 14:19:15

Updated 2025-04-09 00:30:58

Source Microsoft Corporation

View at NVD, CVE.org

Products affected by CVE-2009-0234

Microsoft » Windows 2000 » Update SP4
cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2003
cpe:2.3:o:microsoft:windows_server_2003:*:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2003 » Update SP2
cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2003 » Update SP1 Itanium Edition
cpe:2.3:o:microsoft:windows_server_2003:*:sp1:itanium:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2003 » Update SP1
cpe:2.3:o:microsoft:windows_server_2003:*:sp1:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2008
cpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:*
Matching versions
Microsoft » Windows Server 2008 » X64 Edition
cpe:2.3:o:microsoft:windows_server_2008:*:*:x64:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2009-0234

EPSS FAQ

62.99%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 98 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2009-0234

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
6.4	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:P	10.0	4.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: Partial

CWE ids for CVE-2009-0234

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2009-0234

Jump to

Vulnerability Details : CVE-2009-0234

Products affected by CVE-2009-0234

Exploit prediction scoring system (EPSS) score for CVE-2009-0234

CVSS scores for CVE-2009-0234

CWE ids for CVE-2009-0234

References for CVE-2009-0234