Memory Leak Vulnerability in IBM Db2 Database Software
CVE-2026-6052

6.5MEDIUM

Key Information:

Vendor

IBM
Status
Db2
Vendor
CVE Published:
27 May 2026

What is CVE-2026-6052?

IBM Db2 versions 11.5.0 to 11.5.9 and 12.1.0 to 12.1.4 are susceptible to a memory exhaustion issue that occurs during the execution of specific queries involving Multi-Dimensional Clustering (MDC) tables. This vulnerability can lead to significant performance degradation and may disrupt database operations. Users are advised to refer to IBM's official advisories for patches and detailed mitigation steps.

Affected Version(s)

Db2 11.5.0 <= 11.5.9

Db2 12.1.0 <= 12.1.4

References

https://www.ibm.com/support/pages/node/7273557
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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