Security Bulletin
Summary
An improper input validation vulnerability in Apache POI that is used by InfoSphere Information Server was addressed.
Vulnerability Details
CVEID: CVE-2025-31672
DESCRIPTION: Improper Input Validation vulnerability in Apache POI. The issue affects the parsing of OOXML format files like xlsx, docx and pptx. These file formats are basically zip files and it is possible for malicious users to add zip entries with duplicate names (including the path) in the zip. In this case, products reading the affected file could read different data because 1 of the zip entries with the duplicate name is selected over another but different products may choose a different zip entry.
This issue affects Apache POI poi-ooxml before 5.4.0. poi-ooxml 5.4.0 has a check that throws an exception if zip entries with duplicate file names are found in the input file.
Users are recommended to upgrade to version poi-ooxml 5.4.0, which fixes the issue. Please read https://poi.apache.org/security.html for recommendations about how to use the POI libraries securely.
CWE: CWE-20: Improper Input Validation
CVSS Source: CISA ADP
CVSS Base score: 5.3
CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM InfoSphere Information Server | 11.7.0.0 to 11.7.1.6 |
Remediation/Fixes
| Product | Version(s) | APAR | Remediation |
| IBM InfoSphere Information Server | 11.7.0.0 to 11.7.1.6 | DT439560 | --Apply IBM InfoSphere Information Server version 11.7.1.0 --Apply IBM InfoSphere Information Server version 11.7.1.6 --Apply IBM Information Server 11.7.1.6 Service pack 1 |
Workarounds and Mitigations
None
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References
Acknowledgement
Change History
29 Sep 2025: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
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Document Location
Worldwide
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Document Information
Modified date:
29 September 2025
UID
ibm17246093