What is CVE-2026-6053?

CVE-2026-6053 is a medium-severity vulnerability in IBM Aix, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2026-05-27.

How severe is CVE-2026-6053?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Resource exhaustion in IBM Aix

CVE-2026-6053

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to a denial of service when a specially crafted query is run with range partitioned tables.

Published 2026-05-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.001 (2.8th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

www.ibm.com/support/pages/node/7273556 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-6053?: CVE-2026-6053 is a medium-severity vulnerability in IBM Aix, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2026-05-27.
How severe is CVE-2026-6053?: Medium severity. CVSS v3 base score is 5.5 out of 10.