Privilege Escalation Vulnerability in IBM i by IBM
CVE-2026-18249

8.4HIGH

Key Information:

Vendor

IBM
Status
I
Vendor
CVE Published:
13 August 2026

What is CVE-2026-18249?

A vulnerability has been identified in IBM i versions 7.6, 7.5, 7.4, and 7.3, which may allow a remote authenticated attacker to exploit improper validation of pointers from Java-controlled addresses. This flaw can lead to unauthorized elevation of privileges, potentially enabling attackers to gain access to sensitive operations and information. Users are advised to apply the recommended patches as provided in the vendor advisory to mitigate this security risk.

Affected Version(s)

i 7.6

i 7.5

i 7.4

References

https://www.ibm.com/support/pages/node/7283283
vendor-advisorypatch

CVSS V3.1

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.