Buffer Overflow in IBM i PASE Process

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: IBM Corporation

Description

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a denial of service as a result of a buffer overflow in a PASE process. An authenticated attacker could leverage this to terminate their own process.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-14

Last Modified

2026-09-14

Generated

2026-09-15

AI Q&A

2026-09-15

EPSS Evaluated

N/A

NVD

CVE-2026-19280

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-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This is a denial of service vulnerability in IBM i operating systems (versions 7.6, 7.5, 7.4, and 7.3). It occurs due to a buffer overflow in a PASE process, which could allow an authenticated attacker to terminate their own process.

Impact Analysis

An authenticated attacker could exploit this to disrupt their own processes, potentially causing service interruptions or system instability. The impact is limited to the attacker's own session and does not affect other users or systems directly.

Mitigation Strategies

Apply IBM i PTFs or updates as soon as they become available to address the buffer overflow issue in PASE processes.

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