CVE-2026-13361Network attack vector

Authenticated code execution via unchecked SQL length

Published Aug 12, 2026 · Updated Aug 12, 2026

Stack-based buffer overflow in IBM Informix Dynamic Server 12.10.x, 14.10, and 15.0 allows remote authenticated users to execute code. The oninit sq_sgkprepare routine trusts an unchecked length field in a crafted SQL Interface request and overflows a stack buffer. An admitted SQL Interface client is required, and successful exploitation runs code with the database service account's privileges.

CVSS severity8.8
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in IBM Informix Dynamic Server 12.10.x, 14.10, and 15.0 allows remote authenticated users to execute code. The oninit sq_sgkprepare routine trusts an unchecked length field in a crafted SQL Interface request and overflows a stack buffer. An admitted SQL Interface client is required, and successful exploitation runs code with the database service account's privileges.

The record

CVE
CVE-2026-13361
Published
Aug 12, 2026
Updated
Aug 12, 2026
Vendor
IBM
Product
IBM Informix Dynamic Server
Classifications
CWE-121, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=12.10.x
  2. Affected versionversion=14.10
  3. Affected versionversion=15.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM Informix Dynamic Serverversion=12.10.x; version=14.10; version=15.0

Published CVSS scores

8.8IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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