High severity · published Aug 20, 2026
CVE-2026-19442
Vulnerabilities in IBM AIX and PowerVM VIOS
8.8
CVSS
0.2%
EPSS
No
On KEV
Description
IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 has a pointer validation flaw exists in the AIX Virtual SCSI (vSCSI) initiator driver. Successful exploitation may result in denial of service, privilege escalation, or full compromise of the client LPAR kernel.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
AIX · IBM
7.2; 7.3 · source: vendor, NVD
PV
PowerVM VIOS · IBM
4.1 · source: vendor
VI
Vios · Ibm
4.1.0 before 4.1.0.50; 4.1.1.0 before 4.1.1.30; 4.1.2.0 before 4.1.2.20 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-19442
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-19442
Patch
https://www.ibm.com/support/pages/node/7283858
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