Denial of Service Vulnerability in IBM i Products
CVE-2026-18671

6.5MEDIUM

Key Information:

Vendor

IBM
Status
I
Vendor
CVE Published:
13 August 2026

What is CVE-2026-18671?

A vulnerability in IBM i 7.6, 7.5, 7.4, and 7.3 can allow an authenticated user to trigger an integer overflow during bounds checking in NetServer request processing. This exploitation could lead to a temporary denial of service, impacting the functionality of the server. It is essential for users of these IBM i versions to be aware of this potential risk and to take appropriate measures to mitigate it.

Affected Version(s)

i 7.6

i 7.5

i 7.4

References

https://www.ibm.com/support/pages/node/7283573
vendor-advisorypatch

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.