How severe is CVE-2009-3159?

CVE-2009-3159 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2009-3159 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3159?

CVE-2009-3159 primarily affects Ibm Websphere Mq. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-3159?

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

When was CVE-2009-3159 published?

CVE-2009-3159 was published on 2009-09-10 and last updated on 2026-06-16.

CVE-2009-3159

CVE-2009-3159 is a high-severity vulnerability in Ibm Websphere Mq with a CVSS 2.0 base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Websphere Mq
Published: 2009-09-10
Last modified: 2026-06-16

Description

Unspecified vulnerability in the rriDecompress function in IBM WebSphere MQ 7.0.0.0, 7.0.0.1, and 7.0.0.2 allows remote attackers to cause a denial of service via unknown vectors.

Frequently asked questions

What is CVE-2009-3159?: Unspecified vulnerability in the rriDecompress function in IBM WebSphere MQ 7.0.0.0, 7.0.0.1, and 7.0.0.2 allows remote attackers to cause a denial of service via unknown vectors.
How severe is CVE-2009-3159?: CVE-2009-3159 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2009-3159 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3159?: CVE-2009-3159 primarily affects Ibm Websphere Mq. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-3159?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2009-3159 published?: CVE-2009-3159 was published on 2009-09-10 and last updated on 2026-06-16.

References

Affected products (3)

cpe:2.3:a:ibm:websphere_mq:7.0.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_mq:7.0.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_mq:7.0.0.2:*:*:*:*:*:*:*

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