---
id: CVE-2025-36122
title: >-
  IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.3 for Linux, UNIX and
  Windows (includes DB2 Connect Server) could allow an authenticated user to
  cause a denial of service using a specially crafted SQL query due to improper
  allocat…
summary: >-
  IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.3 for Linux, UNIX and
  Windows (includes DB2 Connect Server) could allow an authenticated user to
  cause a denial of service using a specially crafted SQL query due to improper
  allocat…
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-770
vendor: ibm
product: db2
affected:
  - 'db2 >= 11.5.0, <= 11.5.9'
  - 'db2 >= 12.1.0, <= 12.1.3'
published: '2026-04-30'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T22:10:00.273'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-36122'
references:
  - url: 'https://www.ibm.com/support/pages/node/7267642'
    label: psirt@us.ibm.com
tags:
  - nvd
epss: 0.00245
epssPercentile: 0.14201
ingestedAt: '2026-09-30T22:27:27.773Z'
---

## Overview

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.3 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow an authenticated user to cause a denial of service using a specially crafted SQL query due to improper allocation of system resources.

## Affected

- `db2 >= 11.5.0, <= 11.5.9`
- `db2 >= 12.1.0, <= 12.1.3`

## Remediation

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