CVE-2026-17440
Received Received - Intake

Denial of Service in IBM App Connect Enterprise

Vulnerability report for CVE-2026-17440, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-04

Last updated on: 2026-09-04

Assigner: IBM Corporation

Description

IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.28 and IBM Integration Bus for z/OS 10.1.0.0 through 10.1.0.7 could allow a local attacker to cause a denial of service due to uncontrolled recursion.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-09-04
Last Modified
2026-09-04
Generated
2026-09-05
AI Q&A
2026-09-04
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
ibm app_connect_enterprise From 13.0.1.0 (inc) to 13.0.8.1 (inc)
ibm app_connect_enterprise From 12.0.1.0 (inc) to 12.0.12.28 (inc)
ibm integration_bus_for_z/os From 10.1.0.0 (inc) to 10.1.0.7 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-674 The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

Attack-Flow Graph

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Executive Summary

This vulnerability in IBM App Connect Enterprise and IBM Integration Bus for z/OS allows a local attacker to cause a denial of service through uncontrolled recursion. This means the system may repeatedly call itself without proper limits, consuming excessive resources and crashing the application.

Impact Analysis

If exploited, this vulnerability could cause your IBM App Connect Enterprise or IBM Integration Bus for z/OS services to become unresponsive or crash, leading to downtime and potential loss of data processing capabilities.

Mitigation Strategies

Apply the latest IBM App Connect Enterprise or IBM Integration Bus for z/OS patches immediately. Monitor for unusual system behavior like crashes or high CPU usage. Restrict local access to affected systems until patched.

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