CVE-2026-16833

Received Received - Intake

Out-of-Bounds Read in IBM AIX and PowerVM VIOS

Publication date: 2026-08-19

Last updated on: 2026-08-19

Assigner: IBM Corporation

Description

IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to disclose kernel memory due to an out-of-bounds read.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-19

Last Modified

2026-08-19

Generated

2026-08-20

AI Q&A

2026-08-20

EPSS Evaluated

N/A

NVD

CVE-2026-16833

EUVD

EUVD-2026-62720

Affected Vendors & Products

Vendor	Product	Version / Range
ibm	aix	From 7.2 (inc)
ibm	aix	From 7.3 (inc)
ibm	powervm_vios	From 4.1 (inc)

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 out-of-bounds read issue in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. It allows a remote attacker to disclose kernel memory by exploiting improper memory access.

Impact Analysis

An attacker could exploit this to read sensitive kernel memory, potentially exposing confidential data or system information. This may lead to further attacks or unauthorized access.

Compliance Impact

This vulnerability could lead to unauthorized data disclosure, violating confidentiality requirements in GDPR and HIPAA. Organizations may face compliance penalties if exploited.

Mitigation Strategies

Apply the latest IBM AIX or PowerVM VIOS security patches as soon as they are available. Monitor IBM's security advisories for updates and restrict network access to affected systems until patches are applied.

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