Stack-based Buffer Overflow in IBM i by IBM
CVE-2026-17270

4.3MEDIUM

Key Information:

Vendor

IBM
Status
I
Vendor
CVE Published:
4 September 2026

What is CVE-2026-17270?

A stack-based buffer overflow in IBM i versions 7.3 through 7.6 could enable a local attacker to execute a denial of service attack. This vulnerability allows for the potential disruption of service by exploiting memory management flaws, emphasizing the need for prompt updates and stringent security practices.

Affected Version(s)

i 7.6

i 7.5

i 7.4

References

https://www.ibm.com/support/pages/node/7285844
vendor-advisorypatch

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.