CVE-2023-43021: IBM InfoSphere Information Server information disclosure

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-12-01 · updated 2026-06-17
Weakness: CWE-209

Description

IBM InfoSphere Information Server 11.7 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system. IBM X-Force ID: 266167.

Affected products

IBM InfoSphere Information Server: from 11.7.0.0 before 11.7.1.0; from 11.7.0.0 before 11.7.1.4 — fixed in 11.7.1.0, 11.7.1.4

How to fix

Upgrade to a fixed version: IBM InfoSphere Information Server 11.7.1.0, 11.7.1.4. Check the vendor advisory for mitigations.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/266167
https://www.ibm.com/support/pages/node/7074317
https://exchange.xforce.ibmcloud.com/vulnerabilities/266167
https://www.ibm.com/support/pages/node/7074317

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