CVE-2026-13476

IBM Informix Wire Listener Vulnerable to Unauthenticated Remote Code Execution

HIGH
7.3
CVSS Score
Published: August 12, 2026 at 08:58 PM UTC
Updated: October 23, 2026 at 07:10 PM UTC
1 product affected across 1 vendorInformix Dynamic Server· also runs on 8 platforms

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Severity
HIGH7.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Affected range stops below 15.0.1.13, so it looks safe — our inference, not a vendor statement
canonical-ubuntu-linux (environment) · hp-hp-ux (environment) · ibm-aix (environment) · ibm-linux-on-ibm-z (environment) · linux-linux-kernel (environment) · novell-suse-linux (environment) · oracle-solaris (environment) · redhat-desktop (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://www.ibm.com/support/pages/node/7282827

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHibm
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusANALYZED
CWE
CWE-78

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