Denial of Service Vulnerability in IBM i Products
CVE-2026-18020

5.3MEDIUM

Key Information:

Vendor

IBM
Status
I
Vendor
CVE Published:
13 August 2026

What is CVE-2026-18020?

An off-by-one error in the bounds checking of IBM i versions 7.6, 7.5, 7.4, and 7.3 may be exploited by remote attackers to induce a denial of service condition. This vulnerability emphasizes the need for timely security updates and patch management to safeguard against potential disruptions.

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:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.