How severe is CVE-2009-0391?

CVE-2009-0391 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2009-0391 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0391?

CVE-2009-0391 affects Ibm Websphere Application Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-0391?

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-2009-0391 published?

CVE-2009-0391 was published on 2009-02-02 and last updated on 2026-06-16.

CVE-2009-0391

CVE-2009-0391 is a high-severity vulnerability in Ibm Websphere Application Server 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. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Ibm Websphere Application Server
Published: 2009-02-02
Last modified: 2026-06-16

Description

Unspecified vulnerability in IBM WebSphere Application Server (WAS) 6.0.1 on z/OS allows attackers to read arbitrary files via unknown vectors.

Frequently asked questions

What is CVE-2009-0391?: Unspecified vulnerability in IBM WebSphere Application Server (WAS) 6.0.1 on z/OS allows attackers to read arbitrary files via unknown vectors.
How severe is CVE-2009-0391?: CVE-2009-0391 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2009-0391 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-0391?: CVE-2009-0391 affects Ibm Websphere Application Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-0391?: 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-2009-0391 published?: CVE-2009-0391 was published on 2009-02-02 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:ibm:websphere_application_server:6.0.1:*:*:*:*:*:*:*

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