What is CVE-2026-104332?

CVE-2026-104332 is a medium-severity vulnerability in IBM Db2, classified under Stack-based Buffer Overflow. CVSS score: 5.5/10. Published 2026-10-12.

How severe is CVE-2026-104332?

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

Buffer overflow in IBM Db2

CVE-2026-104332

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 is vulnerable to a denial of service when executing a specially crafted query with a Materialized Query Table

Vulnerability class: Buffer Overflow

Published 2026-10-12.

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

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-121 — Stack-based Buffer Overflow

References

www.ibm.com/support/pages/node/7291614 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-104332?: CVE-2026-104332 is a medium-severity vulnerability in IBM Db2, classified under Stack-based Buffer Overflow. CVSS score: 5.5/10. Published 2026-10-12.
How severe is CVE-2026-104332?: Medium severity. CVSS v3 base score is 5.5 out of 10.