Stack-Based Buffer Overflow Vulnerability in IBM i Products
CVE-2026-18077

7.5HIGH

Key Information:

Vendor

IBM
Status
I
Vendor
CVE Published:
13 August 2026

What is CVE-2026-18077?

A stack-based buffer overflow vulnerability in IBM i versions 7.3, 7.4, 7.5, and 7.6 exposes the system to potential remote denial of service attacks. This flaw can be exploited by an attacker to manipulate the execution flow, leading to crashes or service interruptions. It is crucial for users of these affected products to apply available patches to mitigate the risk and maintain system integrity.

Affected Version(s)

i 7.6

i 7.5

i 7.4

References

https://www.ibm.com/support/pages/node/7283291
vendor-advisorypatch

CVSS V3.1

Score:
7.5
Severity:
HIGH
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

.