Improper input validation in IBM Db2

CVE-2026-104364

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 could allow a local attacker to cause a denial of service due to improper input validation.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2026-10-12.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

IBM Db2

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

www.ibm.com/support/pages/node/7291615 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-104364?: CVE-2026-104364 is a low-severity vulnerability in IBM Db2, classified under Improper Input Validation. CVSS score: 3.3/10. Published 2026-10-12.
How severe is CVE-2026-104364?: Low severity. CVSS v3 base score is 3.3 out of 10.