Denial of Service Vulnerability in IBM Db2 for Linux, UNIX, and Windows
CVE-2025-36442

6.5MEDIUM

Key Information:

Vendor

IBM
Status
Db2 For Linux, Unix And Windows
Vendor
CVE Published:
30 January 2026

What is CVE-2025-36442?

IBM Db2 for Linux, UNIX, and Windows versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.3 are susceptible to a Denial of Service attack. The issue arises when the server processes a specially crafted query that includes XML columns, potentially leading to a crash under specific conditions. This vulnerability highlights the importance of auditing and securing database queries to prevent service interruptions.

Affected Version(s)

Db2 for Linux, UNIX and Windows 11.5.0 <= 11.5.9

Db2 for Linux, UNIX and Windows 12.1.0 <= 12.1.3

References

https://www.ibm.com/support/pages/node/7257698
vendor-advisorypatch

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.