Denial of Service Vulnerability in IBM Db2 for Linux, UNIX and Windows
CVE-2025-36427

6.5MEDIUM

Key Information:

Vendor

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

What is CVE-2025-36427?

IBM Db2 for Linux, UNIX and Windows versions 11.5.0 to 11.5.9 and 12.1.0 to 12.1.3 are susceptible to a denial of service vulnerability. This arises from the improper handling of special elements within data query logic, which allows a local user to disrupt service availability. Immediate action is recommended as this vulnerability can significantly impact system stability and performance.

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/7257696
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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