CVE-2025-36353: IBM Db2 Denial of Service

Published Jan 29, 2026
·
Updated

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 and 12.1.0 - 12.1.3 could allow a local user to cause a denial of service due to improper neutralization of special elements in data query logic.

Other sources

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) could allow a local user to cause a denial of service due to improper neutralization of special elements in data query logic.

— MITRE

Affected Software

9 affected components
IBM DB2
IBM IBM® Db2®<=11.5.0 - 11.5.9
IBM IBM® Db2®<=12.1.0 - 12.1.3
IBM Db2 Linux>=11.5.0<=11.5.9
IBM Db2 Unix>=11.5.0<=11.5.9
IBM Db2 Windows>=11.5.0<=11.5.9
IBM Db2 Linux>=12.1.0<=12.1.3
IBM Db2 Unix>=12.1.0<=12.1.3
IBM Db2 Windows>=12.1.0<=12.1.3

Remediation

Information

Customers running any vulnerable modpack level of an affected Program, V11.5, and V12.1, 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, V12.1.2 and V12.1.3. 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 V12.1TBD https://www.ibm.com/support/pages/db2-v1212-published-cumulative-special-build-downloads Special Build #71609 or later for V12.1.3 available at this link: https://www.ibm.com/support/pages/db2-v1213-published-cumulative-special-build-downloads

Patch Available

https://www.ibm.com/support/pages/node/7257632

Event History

Jan 29, 2026
CVE Published
via IBM·12:00 AM
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software
Jan 30, 2026
CVE Published
via MITRE·09:27 PM
Data Sourced
via MITRE·09:27 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·10:15 PM
RemedyDescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2025-36353?

CVE-2025-36353 is classified as a denial of service vulnerability which can impact the availability of systems running affected versions of IBM Db2.

2

How do I fix CVE-2025-36353?

To remediate CVE-2025-36353, upgrade IBM Db2 to a version above 11.5.9 or 12.1.3 as specified by IBM.

3

What versions of IBM Db2 are affected by CVE-2025-36353?

CVE-2025-36353 affects IBM Db2 for Linux, UNIX and Windows versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.3.

4

Is CVE-2025-36353 a remote exploitation vulnerability?

No, CVE-2025-36353 requires local access to exploit the denial of service condition.

5

What impact does CVE-2025-36353 have on IBM Db2?

CVE-2025-36353 can lead to a denial of service, making the database unavailable to users.

Company

Resources

Contact

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