Denial of Service Vulnerability in IBM Db2 for Linux, UNIX and Windows
CVE-2025-36009

6.5MEDIUM

Key Information:

Vendor

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

What is CVE-2025-36009?

A vulnerability exists in IBM Db2 for Linux, UNIX, and Windows, allowing an unauthenticated user to potentially disrupt service by manipulating a global variable. This excessive usage could lead to a denial of service condition, impacting system stability and availability. Users are advised to review the vendor’s advisory for mitigation strategies and updates.

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/7257695
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

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