Arbitrary Code Execution Vulnerability in IBM i Products
CVE-2026-18099

8.9HIGH

Key Information:

Vendor

IBM
Status
I
Vendor
CVE Published:
12 August 2026

What is CVE-2026-18099?

Various versions of IBM i (7.6, 7.5, 7.4, and 7.3) are susceptible to a vulnerability that permits remote authenticated attackers to execute arbitrary script code. This security issue arises from improper neutralization of user-controlled input, potentially allowing an attacker to manipulate the system and inject malicious scripts. IBM has released an advisory and patch to address this vulnerability, emphasizing the importance of applying security updates promptly to safeguard against potential exploitation.

Affected Version(s)

i 7.6

i 7.5

i 7.4

References

https://www.ibm.com/support/pages/node/7283292
vendor-advisorypatch

CVSS V3.1

Score:
8.9
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.