CVE-2026-10543

Analyzed Analyzed - Analysis Complete

Privilege Escalation in IBM Db2 Database

Publication date: 2026-08-12

Last updated on: 2026-10-23

Assigner: IBM Corporation

Description

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is vulnerable to privilege escalation with a specially crafted query.

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Meta Information

Published

2026-08-12

Last Modified

2026-10-23

Generated

2026-11-08

AI Q&A

2026-08-13

EPSS Evaluated

2026-11-07

NVD

CVE-2026-10543

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	db2	From 11.5 (inc) to 11.5.9 (inc)
ibm	db2	From 12.1.0 (inc) to 12.1.5 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-285	The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

IBM Db2 versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.5 have a privilege escalation vulnerability. An attacker can exploit this by sending a specially crafted query to gain higher privileges than intended.

Detection Guidance

This vulnerability involves privilege escalation in IBM Db2 versions 11.5.0-11.5.9 and 12.1.0-12.1.5. Detection requires checking installed Db2 versions and monitoring for unusual privilege changes. Use 'db2level' to verify Db2 version. Check system logs for unauthorized privilege escalation attempts or unusual query patterns. No specific commands are provided in the CVE details.

Impact Analysis

This vulnerability allows an attacker to escalate their privileges on the system running the vulnerable Db2 software. This could lead to unauthorized access to sensitive data, modification of system configurations, or disruption of services.

Compliance Impact

This vulnerability could lead to unauthorized access or exposure of sensitive data, which may violate compliance requirements such as GDPR (data protection) or HIPAA (health information privacy). Organizations using affected Db2 versions may face regulatory penalties or reputational damage.

Mitigation Strategies

Apply the latest IBM Db2 patches for versions 11.5.0-11.5.9 and 12.1.0-12.1.5 to address the privilege escalation vulnerability.

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