CVE-2026-18096

Received Received - Intake

Memory Leak in IBM Db2 12.1.5

Publication date: 2026-08-12

Last updated on: 2026-08-12

Assigner: IBM Corporation

Description

IBM Db2 12.1.5 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow a local attacker to cause a denial of service due to a memory leak.

CVSS Scores

EPSS Scores

Probability:
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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-2026-18096

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	db2	12.1.5

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-770	The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Attack-Flow Graph

Executive Summary

IBM Db2 12.1.5 for Linux, UNIX and Windows (including DB2 Connect Server) has a memory leak vulnerability. A local attacker could exploit this to cause a denial of service by consuming system memory over time.

Detection Guidance

This vulnerability is a local denial of service due to a memory leak in IBM Db2. Detection requires monitoring for unusual memory consumption or process crashes on systems running Db2 12.1.5. Check for increased memory usage by the Db2 process using system tools like 'top', 'htop', or 'ps aux | grep db2'. Monitor system logs for Db2-related errors or crashes.

Impact Analysis

This vulnerability could lead to system instability or crashes due to memory exhaustion. It primarily affects local users with access to the system where Db2 is installed.

Mitigation Strategies

Apply the latest IBM Db2 patch or update to a version that fixes the memory leak. Restart the Db2 service after patching. Limit local access to Db2 instances to reduce attack surface. Monitor memory usage and system stability post-update.

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