How severe is CVE-2009-4327?

CVE-2009-4327 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-4327 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4327?

CVE-2009-4327 primarily affects Ibm Db2. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-4327?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-4327 published?

CVE-2009-4327 was published on 2009-12-16 and last updated on 2026-06-16.

CVE-2009-4327

CVE-2009-4327 is a medium-severity vulnerability in Ibm Db2 with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Ibm Db2
Published: 2009-12-16
Last modified: 2026-06-16

Description

The Common Code Infrastructure component in IBM DB2 9.5 before FP5 and 9.7 before FP1 does not properly validate the size of a memory pool during a creation attempt, which allows attackers to cause a denial of service (memory consumption) via unspecified vectors.

Frequently asked questions

What is CVE-2009-4327?: The Common Code Infrastructure component in IBM DB2 9.5 before FP5 and 9.7 before FP1 does not properly validate the size of a memory pool during a creation attempt, which allows attackers to cause a denial of service (memory consumption) via unspecified vectors.
How severe is CVE-2009-4327?: CVE-2009-4327 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-4327 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4327?: CVE-2009-4327 primarily affects Ibm Db2. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-4327?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-4327 published?: CVE-2009-4327 was published on 2009-12-16 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:a:ibm:db2:9.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:db2:9.5:fp1:*:*:*:*:*:*
cpe:2.3:a:ibm:db2:9.5:fp2:*:*:*:*:*:*
cpe:2.3:a:ibm:db2:9.5:fp2a:*:*:*:*:*:*
cpe:2.3:a:ibm:db2:9.5:fp3:*:*:*:*:*:*
cpe:2.3:a:ibm:db2:9.5:fp3a:*:*:*:*:*:*
cpe:2.3:a:ibm:db2:9.5:fp3b:*:*:*:*:*:*
cpe:2.3:a:ibm:db2:9.7:*:*:*:*:*:*:*

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