Pointer Validation Flaw in IBM AIX and PowerVM vSCSI Driver
CVE-2026-19442

8.2HIGH

Key Information:

Vendor

IBM
Status
Aix
Powervm ViOS
Vendor
CVE Published:
20 August 2026

What is CVE-2026-19442?

A pointer validation flaw in the AIX Virtual SCSI (vSCSI) initiator driver present in IBM AIX versions 7.2, 7.3, and IBM PowerVM VIOS 4.1 can lead to significant security risks. If exploited, this vulnerability may provide attackers with the potential for denial of service, privilege escalation, or even complete compromise of the client LPAR kernel. Users are advised to review the vendor's advisory and promptly apply the necessary patches to mitigate these vulnerabilities.

Affected Version(s)

AIX 7.2

AIX 7.3

PowerVM VIOS 4.1

References

https://www.ibm.com/support/pages/node/7283858
vendor-advisorypatch

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

CVE-2026-14970, CVE-2026-15061, CVE-2026-15078, CVE-2026-15065, CVE-2026-15068 were reported to IBM by Oneconsult AG (https://oneconsult.com/).
.