CVE-2026-17485

Received Received - Intake

Integer Underflow in IBM i Leading to DoS and Information Disclosure

Publication date: 2026-08-12

Last updated on: 2026-08-12

Assigner: IBM Corporation

Description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service and obtain sensitive information due to an integer underflow.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-12

Last Modified

2026-08-12

Generated

2026-08-13

AI Q&A

2026-08-13

EPSS Evaluated

N/A

NVD

CVE-2026-17485

EUVD

EUVD-2026-57599

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	i	7.6
ibm	i	7.5
ibm	i	7.4
ibm	i	7.3

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is an integer underflow issue in IBM i versions 7.6, 7.5, 7.4, and 7.3. It allows a remote attacker to cause a denial of service and potentially access sensitive information by exploiting the integer underflow condition.

Impact Analysis

The impact includes system disruption due to denial of service and possible exposure of sensitive data. The high CVSS score of 8.2 indicates significant risk as it can be exploited remotely without authentication.

Mitigation Strategies

Apply IBM i PTFs or updates provided for versions 7.6, 7.5, 7.4, and 7.3 to address the integer underflow issue. Monitor IBM PSIRT advisories for patches and restrict remote access to affected systems until updates are applied.

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