CVE-2026-16480
Received Received - Intake

Improper Authorization in IBM Db2

Publication date: 2026-08-12

Last updated on: 2026-08-12

Assigner: IBM Corporation

Description
IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is affected by an improper authorization vulnerability in the certain command, allowing a non-privileged user to bypass authority checks and modify database catalog data.

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Meta Information

Published
2026-08-12
Last Modified
2026-08-12
Generated
2026-08-13
AI Q&A
2026-08-13
EPSS Evaluated
N/A
NVD
CVE-2026-16480

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
ibm db2 From 11.5.0 (inc) to 11.5.9 (inc)
ibm db2 From 12.1.0 (inc) to 12.1.5 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-602 The product is composed of a server that relies on the client to implement a mechanism that is intended to protect the server.

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Executive Summary

IBM Db2 versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.5 have an improper authorization vulnerability. This flaw allows a non-privileged user to bypass authority checks and modify database catalog data.

Impact Analysis

A non-privileged user could exploit this to alter database catalog data, potentially leading to unauthorized data access, corruption, or system instability. This could affect data integrity and availability.

Compliance Impact

This vulnerability could lead to unauthorized data modifications, violating integrity and access control requirements in GDPR and HIPAA. Non-compliance risks include fines and legal penalties.

Mitigation Strategies

Apply the latest IBM Db2 patches or updates to versions beyond 11.5.9 or 12.1.5. Review and restrict non-privileged user access to commands that interact with database catalog data. Monitor database logs for unauthorized modifications to catalog entries.

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