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MEDIUM · 6.5

CVE-2026-11906

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 for Linux, UNIX and Windows (includes Db2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutra...

Vulnerability Description

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 for Linux, UNIX and Windows (includes Db2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutralization of special elements in the data query logic of XMLTable-derived columns.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
IbmDb2>= 11.5.0, <= 11.5.9
LinuxLinux Kernel-
MicrosoftWindows-
OpengroupUnix-

Related Weaknesses (CWE)

CWE-1284

References

FAQ

What is CVE-2026-11906?

CVE-2026-11906 is a vulnerability with a CVSS score of 6.5 (MEDIUM). IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 for Linux, UNIX and Windows (includes Db2 Connect Server) could allow an authenticated user to cause a denial of service due to improper neutra...

How severe is CVE-2026-11906?

CVE-2026-11906 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-11906?

Check the references section above for vendor advisories and patch information. Affected products include: Ibm Db2, Linux Linux Kernel, Microsoft Windows, Opengroup Unix.