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 user interaction or privileges.
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 type confusion issue (CWE-843) can be exploited remotely to execute arbitrary code, impacting confidentiality, integrity, and availability. The CVSS 3.1 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 code execution with full system impact, including complete compromise of confidentiality, integrity, and availability of affected systems.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Monitor IBM security 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 user interaction or privileges.
CVSS v3.1
Score 9.8critical
Affected software
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 type confusion issue (CWE-843) can be exploited remotely to execute arbitrary code, impacting confidentiality, integrity, and availability. The CVSS 3.1 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 code execution with full system impact, including complete compromise of confidentiality, integrity, and availability of affected systems.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. No official fix or temporary workaround is currently documented. Monitor IBM security 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
- Remediation Level
- null
Threat ID: 6a860d1aacd9273b498f9c52
Added to database: 08/19/2026, 20:07:54 UTC
Last enriched: 08/19/2026, 20:22:03 UTC
Last updated: 08/19/2026, 20:22:03 UTC
Views: 4
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