How severe is CVE-2009-4240?

CVE-2009-4240 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2009-4240 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-4240?

CVE-2009-4240 affects Ibm Infosphere Information Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-4240?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2009-4240 published?

CVE-2009-4240 was published on 2009-12-09 and last updated on 2026-06-16.

CVE-2009-4240

CVE-2009-4240 is a critical-severity vulnerability in Ibm Infosphere Information Server with a CVSS 2.0 base score of 10.0. 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-119.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Ibm Infosphere Information Server
Published: 2009-12-09
Last modified: 2026-06-16

Description

Multiple buffer overflows in unspecified setuid executables in the DataStage subsystem in IBM InfoSphere Information Server 8.1 before FP1 have unknown impact and attack vectors.

Frequently asked questions

What is CVE-2009-4240?: Multiple buffer overflows in unspecified setuid executables in the DataStage subsystem in IBM InfoSphere Information Server 8.1 before FP1 have unknown impact and attack vectors.
How severe is CVE-2009-4240?: CVE-2009-4240 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2009-4240 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-4240?: CVE-2009-4240 affects Ibm Infosphere Information Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-4240?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2009-4240 published?: CVE-2009-4240 was published on 2009-12-09 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:ibm:infosphere_information_server:8.1:*:*:*:*:*:*:*

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