---
id: CVE-2026-17463
title: >-
  IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 for Linux, UNIX and
  Windows (includes DB2 Connect Server) could allow a remote authenticated
  attacker to cause a denial of service due to uncontrolled resource
  consumption.
summary: >-
  IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 for Linux, UNIX and
  Windows (includes DB2 Connect Server) could allow a remote authenticated
  attacker to cause a denial of service due to uncontrolled resource
  consumption.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
vendor: IBM
product: Db2
affected:
  - Db2 >= 11.5.0 <= 11.5.9
  - Db2 >= 12.1.0 <= 12.1.5
published: '2026-09-14'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:22:22.797'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-17463'
references:
  - url: 'https://www.ibm.com/support/pages/node/7286983'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
epss: 0.00345
epssPercentile: 0.25294
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T20:12:03.874967Z'
ingestedAt: '2026-09-14T20:14:21.159Z'
---

## Overview

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow a remote authenticated attacker to cause a denial of service due to uncontrolled resource consumption.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.