CVE-2025-36247: IBM Db2 XML External Entity Reference

Published Feb 9, 2026
·
Updated

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 through 11.5.9 and 12.1.0 through 12.1.3 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.

Other sources

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) is vulnerable to an XML external entity injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.

— IBM

Affected Software

8 affected components
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 V12.1   TBD   https://www.ibm.com/support/pages/db2-v1212-published-cumulative-special-build-downloads Special Build #74153 or later for V12.1.3 available at this link: https://www.ibm.com/support/pages/db2-v1213-published-cumulative-special-build-downloads

Event History

Feb 9, 2026
CVE Published
via IBM·12:00 AM
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software
Feb 17, 2026
CVE Published
via MITRE·05:13 PM
Data Sourced
via MITRE·05:13 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·06:20 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2025-36247?

The severity of CVE-2025-36247 is high with a CVSS score of 8.2.

2

What software is affected by CVE-2025-36247?

CVE-2025-36247 affects IBM Db2 for Linux, UNIX, and Windows versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.3.

3

How do I fix CVE-2025-36247?

To fix CVE-2025-36247, download the special build containing the interim fix from Fix Central for the affected versions.

4

What type of attack is associated with CVE-2025-36247?

CVE-2025-36247 is associated with XML external entity (XXE) injection attacks.

5

What could a remote attacker achieve by exploiting CVE-2025-36247?

A remote attacker exploiting CVE-2025-36247 could expose sensitive information or consume system resources.

Company

Resources

Contact

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