CVE-2026-16919: CWE-843 Access of Resource Using Incompatible Type ('Type Confusion') in IBM AIX
CVE-2026-16919 is a critical vulnerability in IBM AIX versions 7.2 and 7.3, and IBM PowerVM VIOS 4.1. It involves improper validation of network-supplied pointers leading to type confusion (CWE-843). This flaw could allow a remote attacker to execute arbitrary code without requiring privileges or user interaction.
AI Analysis
Technical Summary
This vulnerability arises from improper validation of network-supplied pointers in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. The issue is classified as CWE-843 (Access of Resource Using Incompatible Type, or type confusion). Exploitation could enable remote code execution with high impact on confidentiality, integrity, and availability. The CVSS v3.1 base score is 9.8, indicating critical severity with network attack vector, low attack complexity, no privileges required, and no user interaction needed.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code on affected systems, potentially leading to full system compromise. The vulnerability impacts confidentiality, integrity, and availability at a high level.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. No official fix or patch links are provided in the current data. Until a patch is available, monitor IBM advisories for updates.
CVE-2026-16919: CWE-843 Access of Resource Using Incompatible Type ('Type Confusion') in IBM AIX
Description
CVE-2026-16919 is a critical vulnerability in IBM AIX versions 7.2 and 7.3, and IBM PowerVM VIOS 4.1. It involves improper validation of network-supplied pointers leading to type confusion (CWE-843). This flaw could allow a remote attacker to execute arbitrary code without requiring privileges or user interaction.
CVSS v3.1
Score 9.8critical
Affected software
IBM
AIX
IBM
PowerVM VIOS
cpe:2.3:a:ibm:aix:7.2:*:*:*:*:*:*:*cpe:2.3:a:ibm:aix:7.2.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:aix:7.3:*:*:*:*:*:*:*cpe:2.3:a:ibm:aix:7.3.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:powervm_vios:4.1:*:*:*:*:*:*:*cpe:2.3:a:ibm:powervm_vios:4.1.0:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from improper validation of network-supplied pointers in IBM AIX 7.2, 7.3, and IBM PowerVM VIOS 4.1. The issue is classified as CWE-843 (Access of Resource Using Incompatible Type, or type confusion). Exploitation could enable remote code execution with high impact on confidentiality, integrity, and availability. The CVSS v3.1 base score is 9.8, indicating critical severity with network attack vector, low attack complexity, no privileges required, and no user interaction needed.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary code on affected systems, potentially leading to full system compromise. The vulnerability impacts confidentiality, integrity, and availability at a high level.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. No official fix or patch links are provided in the current data. Until a patch is available, monitor IBM advisories for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-24T06:58:19.637Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a860d1aacd9273b498f9c52
Added to database: 08/19/2026, 20:07:54 UTC
Last enriched: 09/11/2026, 05:17:12 UTC
Last updated: 10/02/2026, 14:46:05 UTC
Views: 70
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