CVE-2025-2668 Details
Description
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 is vulnerable to a denial of service as the server may crash when an authenticated user creates a specially crafted query.
A denial-of-service vulnerability has been identified in IBM Db2 for Linux, UNIX, and Windows, including Db2 Connect Server, versions 11.5.0 through 11.5.9. The issue arises when an authenticated user executes a specially crafted query that involves ALTER TABLE operations, potentially causing the server to crash.
Users can download a special build containing the interim fix for this issue from Fix Central. This special build is available for Db2 version 11.5.9 and can be applied to any affected mod pack level of that release. Instructions for downloading the special build are available on the IBM Support page.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Feb 2, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.ibm.com/support/pages/node/7257518 | [email protected] | PatchVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-770 | Allocation of Resources Without Limits or Throttling | [email protected] |
| CWE-789 | Memory Allocation with Excessive Size Value | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ibm db2 | >= 11.5.0, <= 11.5.9 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Feb 5, 2026 | Initial Analysis | [email protected] |
| Jan 30, 2026 | New CVE Received | [email protected] |