How severe is CVE-2009-1172?

CVE-2009-1172 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2009-1172 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1172?

CVE-2009-1172 primarily affects Ibm Websphere Application Server. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-1172?

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-2009-1172 published?

CVE-2009-1172 was published on 2009-03-31 and last updated on 2026-06-16.

CVE-2009-1172

CVE-2009-1172 is a critical-severity vulnerability in Ibm Websphere Application 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-20.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Ibm Websphere Application Server
Published: 2009-03-31
Last modified: 2026-06-16

Description

The JAX-RPC WS-Security runtime in the Web Services Security component in IBM WebSphere Application Server (WAS) 6.1 before 6.1.0.23 and 7.0 before 7.0.0.3, when APAR PK41002 is installed, does not properly validate UsernameToken objects, which has unknown impact and attack vectors.

Frequently asked questions

What is CVE-2009-1172?: The JAX-RPC WS-Security runtime in the Web Services Security component in IBM WebSphere Application Server (WAS) 6.1 before 6.1.0.23 and 7.0 before 7.0.0.3, when APAR PK41002 is installed, does not properly validate UsernameToken objects, which has unknown impact and attack vectors.
How severe is CVE-2009-1172?: CVE-2009-1172 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2009-1172 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1172?: CVE-2009-1172 primarily affects Ibm Websphere Application Server. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1172?: 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-2009-1172 published?: CVE-2009-1172 was published on 2009-03-31 and last updated on 2026-06-16.

References

Affected products (27)

cpe:2.3:a:ibm:websphere_application_server:6.1:*:*:*:*:*:*:*
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:6.1.0.17:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.18:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.19:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.20:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.21:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:6.1.0.22:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:7.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:websphere_application_server:7.0.0.1:*:*:*:*:*:*:*

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