How severe is CVE-2009-0435?

CVE-2009-0435 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2009-0435 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0435?

CVE-2009-0435 primarily affects Ibm Websphere Application Server. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-0435?

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

When was CVE-2009-0435 published?

CVE-2009-0435 was published on 2009-02-10 and last updated on 2026-06-16.

CVE-2009-0435

CVE-2009-0435 is a medium-severity vulnerability in Ibm Websphere Application Server 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.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Websphere Application Server
Published: 2009-02-10
Last modified: 2026-06-16

Description

Unspecified vulnerability in the IBM Asynchronous I/O (aka AIO or libibmaio) library in the Java Message Service (JMS) component in IBM WebSphere Application Server (WAS) 6.1.x before 6.1.0.17 on AIX 5.3 allows attackers to cause a denial of service (daemon crash) via vectors related to the aio_getioev2 and getEvent methods.

Frequently asked questions

What is CVE-2009-0435?: Unspecified vulnerability in the IBM Asynchronous I/O (aka AIO or libibmaio) library in the Java Message Service (JMS) component in IBM WebSphere Application Server (WAS) 6.1.x before 6.1.0.17 on AIX 5.3 allows attackers to cause a denial of service (daemon crash) via vectors related to the aio_getioev2 and getEvent methods.
How severe is CVE-2009-0435?: CVE-2009-0435 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2009-0435 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0435?: CVE-2009-0435 primarily affects Ibm Websphere Application Server. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-0435?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-0435 published?: CVE-2009-0435 was published on 2009-02-10 and last updated on 2026-06-16.

References

Affected products (25)

cpe:2.3:a:ibm:websphere_application_server:6.1.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.6:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.7:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.8:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.9:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.10:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.11:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.12:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.13:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.14:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.15:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.16:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.6:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.7:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.13:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.14:*:*:*:*:*:*:*

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