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CVE-2009-4439

14
FAUCET Score

CVE-2009-4439 describes an unspecified vulnerability in the Query Compiler, Rewrite, and Optimizer component of IBM DB2 9.5 before FP5. This flaw allows remote authenticated users to trigger a denial of service (instance crash) by compiling a SQL query. The vulnerability has a CVSS score of 4.0, indicating a low severity, and requires authentication for exploitation, with the primary impact being availability. There is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
9.5CPE matchmatch criteria
cpe:2.3:a:ibm:db2:9.5:fp1:*:*:*:*:*:*
9.5CPE matchmatch criteria
cpe:2.3:a:ibm:db2:9.5:fp2:*:*:*:*:*:*
9.5CPE matchmatch criteria
cpe:2.3:a:ibm:db2:9.5:fp2a:*:*:*:*:*:*
9.5CPE matchmatch criteria
cpe:2.3:a:ibm:db2:9.5:fp3:*:*:*:*:*:*
9.5CPE matchmatch criteria
cpe:2.3:a:ibm:db2:9.5:fp3a:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

AV:N/AC:L/Au:S/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.99%
Probability of exploitation in next 30 days
EPSS Percentile
78.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0199 is in the 91st percentile among its peer group of 21,977 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ftp.software.ibm.com / ps/products/db2/fixes/english-us/aparlist/db2_v95/APARLIST.TXT
secunia.com / advisories/37759
Vendor Advisory
www-01.ibm.com / support/docview.wss
Vendor Advisory
www-01.ibm.com / support/docview.wss
Patch
www-01.ibm.com / support/docview.wss
Vendor Advisory
securityfocus.com / bid/37332
vupen.com / english/advisories/2009/3520
PatchVendor Advisory