Shell Metacharacter Injection Vulnerability in IBM AIX and PowerVM
CVE-2026-16875

7.8HIGH

Key Information:

Vendor

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

What is CVE-2026-16875?

A vulnerability exists in IBM AIX versions 7.2 and 7.3, as well as IBM PowerVM VIOS 4.1, where a local attacker can exploit shell metacharacter injection to execute arbitrary commands. This flaw allows unauthorized manipulation of command execution, potentially leading to further exploitation of the affected systems. Users should implement the latest patches provided by IBM to mitigate this risk.

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:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

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/).
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