What is CVE-2026-6052?

CVE-2026-6052 is a medium-severity vulnerability in IBM Aix, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-05-27.

How severe is CVE-2026-6052?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in IBM Aix

CVE-2026-6052

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to running out of memory when executing certain queries with MDC tables.

Vulnerability class: DoS (Denial of Service)

Published 2026-05-27 · last modified 2026-10-14.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (14.4th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

www.ibm.com/support/pages/node/7273557 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-6052?: CVE-2026-6052 is a medium-severity vulnerability in IBM Aix, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-05-27.
How severe is CVE-2026-6052?: Medium severity. CVSS v3 base score is 6.5 out of 10.