CVE-2026-13476 PUBLISHED

IBM Informix Wire Listener Vulnerable to Unauthenticated Remote Code Execution

Assigner: ibm
Reserved: 27.06.2026 Published: 12.08.2026 Updated: 12.08.2026

IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary commands with service account privileges on the system due to improper validation of user supplied input.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS Score: 7.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	Low
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	IBM
Product	Informix Dynamic Server
Versions	Version 14.10 is affected Version 15.0 is affected Version 12.10 is affected

Solutions

The vulnerability has been resolved in IBM Informix versions 14.10.xC13W13 and 15.0.1.13. The fix can be found on IBM Fix Central under the Informix Server section.

References

https://www.ibm.com/support/pages/node/7282827

Problem Types

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE