Vulnerability in IBM Db2

CVE-2026-16480

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is affected by an improper authorization vulnerability in the certain command, allowing a non-privileged user to bypass authority checks and modify database catalog data.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (24.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-16480: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

  • IBM Db2 — versions 11.5.0, 12.1.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-16480?
CVE-2026-16480 is a medium-severity vulnerability in IBM Db2, classified under CWE-602. CVSS score: 4.3/10. Published 2026-08-12.
How severe is CVE-2026-16480?
Medium severity. CVSS v3 base score is 4.3 out of 10.