Improper Authentication Vulnerability in IBM i Systems
CVE-2026-16892

5.4MEDIUM

Key Information:

Vendor

IBM
Status
I
Vendor
CVE Published:
4 September 2026

What is CVE-2026-16892?

The IBM i series, specifically versions 7.6, 7.5, 7.4, and 7.3, is susceptible to an improper authentication issue that could enable a remote authenticated attacker to bypass defined security restrictions. This vulnerability stems from insufficient checks during service-name matching, potentially granting unauthorized access to sensitive functionalities. Organizations using these IBM i versions should review their security practices and apply patches to mitigate the risks associated with this vulnerability.

Affected Version(s)

i 7.6

i 7.5

i 7.4

References

https://www.ibm.com/support/pages/node/7285843
vendor-advisorypatch

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.