IBM Informix sq_sgkprepare RCE via unchecked SQL length field
CVE-2026-13361 Published on August 12, 2026

IBM Informix Server Vulnerability in SQL Interface Handler Could Allow Remote Code Execution
IBM Informix oninit sq_sgkprepare RCE via unchecked SQL Interface length field.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-13361 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is a Stack Overflow Vulnerability?

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

CVE-2026-13361 has been classified to as a Stack Overflow vulnerability or weakness.


Products Associated with CVE-2026-13361

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IBM Informix Dynamic Server
 

Affected Versions

IBM Informix Dynamic Server: