CVE-2026-18102

IBM i Buffer Overflow

Published Aug 19, 2026 CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to overwrite adjacent memory due to an integer underflow during bounds checking.

Remediation

Vendor Solution

IBM i Release5770-999 PTF Number(s)PTF Download Link(s)7.6MJ10886 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10886 7.5MJ10885 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10885 7.4MJ10884 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10884 7.3MJ10883 https://www.ibm.com/mysupport/s/fix-information?legacy=MJ10883 IBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to overwrite adjacent memory due to an integer underflow during bounds checking.
Title IBM i Buffer Overflow
First Time appeared Ibm
Ibm i
Weaknesses CWE-122
CPEs cpe:2.3:o:ibm:i:7.3:*:*:*:*:*:*:*
cpe:2.3:o:ibm:i:7.4:*:*:*:*:*:*:*
cpe:2.3:o:ibm:i:7.5:*:*:*:*:*:*:*
cpe:2.3:o:ibm:i:7.6:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm i
References
Metrics cvssV3_1

{'score': 3.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Aug 20, 2026, 4:27 PM
Reserved
Jul 28, 2026, 5:33 PM
Status
Analyzed
Published
Aug 19, 2026, 9:16 PM
Modified
Aug 24, 2026, 7:34 PM