IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) 11.5.0 - 11.5.9 could allow an authenticated user to cause a denial of service when given specially crafted query.

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Advisories

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Fixes

Solution

Customers running any vulnerable modpack level of an affected Program, V11.5 , can download the special build containing the interim fix for this issue from Fix Central. These special builds are available based on the most recent level for each impacted release: V11.5.9. They can be applied to any affected level of the appropriate release to remediate this vulnerability.   ReleaseFixed in mod packAPARDownload URLV11.5TBD https://www.ibm.com/support/pages/node/7087189   IBM does not disclose key Db2 functionality nor replication steps for a vulnerability to avoid providing too much information to any potential malicious attacker. IBM does not want to enable a malicious attacker with sufficient knowledge to craft an exploit of the vulnerability.


Workaround

No workaround given by the vendor.

History

Thu, 05 Feb 2026 20:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:ibm:db2:*:*:*:*:*:linux:*:*
cpe:2.3:a:ibm:db2:*:*:*:*:*:unix:*:*
cpe:2.3:a:ibm:db2:*:*:*:*:*:windows:*:*

Mon, 02 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 30 Jan 2026 21:45:00 +0000

Type Values Removed Values Added
Description IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) 11.5.0 - 11.5.9 could allow an authenticated user to cause a denial of service when given specially crafted query.
Title IBM Db2 Denial of Service
First Time appeared Ibm
Ibm db2
Weaknesses CWE-770
CPEs cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:aix:*:*
cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:linux:*:*
cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:unix:*:*
cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:windows:*:*
cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:zos:*:*
cpe:2.3:a:ibm:db2:11.5.9:*:*:*:*:aix:*:*
cpe:2.3:a:ibm:db2:11.5.9:*:*:*:*:linux:*:*
cpe:2.3:a:ibm:db2:11.5.9:*:*:*:*:unix:*:*
cpe:2.3:a:ibm:db2:11.5.9:*:*:*:*:windows:*:*
cpe:2.3:a:ibm:db2:11.5.9:*:*:*:*:zos:*:*
cpe:2.3:a:ibm:db2:12.1.0:*:*:*:*:aix:*:*
cpe:2.3:a:ibm:db2:12.1.0:*:*:*:*:linux:*:*
cpe:2.3:a:ibm:db2:12.1.0:*:*:*:*:unix:*:*
cpe:2.3:a:ibm:db2:12.1.0:*:*:*:*:windows:*:*
cpe:2.3:a:ibm:db2:12.1.0:*:*:*:*:zos:*:*
cpe:2.3:a:ibm:db2:12.1.3:*:*:*:*:aix:*:*
cpe:2.3:a:ibm:db2:12.1.3:*:*:*:*:linux:*:*
cpe:2.3:a:ibm:db2:12.1.3:*:*:*:*:unix:*:*
cpe:2.3:a:ibm:db2:12.1.3:*:*:*:*:windows:*:*
cpe:2.3:a:ibm:db2:12.1.3:*:*:*:*:zos:*:*
Vendors & Products Ibm
Ibm db2
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published:

Updated: 2026-02-02T16:31:10.387Z

Reserved: 2025-04-15T21:16:57.302Z

Link: CVE-2025-36387

cve-icon Vulnrichment

Updated: 2026-02-02T16:25:30.719Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-30T22:15:54.587

Modified: 2026-02-05T19:57:45.273

Link: CVE-2025-36387

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses