What is CVE-2026-6938?

CVE-2026-6938 is a medium-severity vulnerability in IBM Aix, classified under Improper Authorization. CVSS score: 6.5/10. Published 2026-05-27.

How severe is CVE-2026-6938?

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

Auth bypass in IBM Aix

CVE-2026-6938

IBM Db2 12.1.0 through 12.1.4 is vulnerable to authorization bypass when uploading to a remote object storage path with a special query.

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

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:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (22.3th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.3% 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: 0.003 · change: +0.001

Affected products

IBM Aix
IBM Db2 — versions 12.1.0
Linux Kernel

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

www.ibm.com/support/pages/node/7273559 (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-6938?: CVE-2026-6938 is a medium-severity vulnerability in IBM Aix, classified under Improper Authorization. CVSS score: 6.5/10. Published 2026-05-27.
How severe is CVE-2026-6938?: Medium severity. CVSS v3 base score is 6.5 out of 10.