CVE-2026-18341 PUBLISHED

IBM i is Affected By Buffer Overflow Vulnerability []

Assigner: ibm
Reserved: 29.07.2026 Published: 04.09.2026 Updated: 04.09.2026

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to corrupt memory due to an integer underflow.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS Score: 6.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	Low	Integrity Impact	Low
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	IBM
Product	i
Versions	Version 7.6 is affected Version 7.5 is affected Version 7.4 is affected Version 7.3 is affected

Solutions

IBM i Release5770-999 PTF Number(s)PTF Download Link(s)7.6MJ11326 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11326 7.5MJ11327 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11327 7.4MJ11328 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11328 7.3MJ11329 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ11329

IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.

References

https://www.ibm.com/support/pages/node/7286094

Problem Types

CWE-122 Heap-based Buffer Overflow CWE