CVE-2026-115501
IBM i is Affected By A Buffer Overflow Vulnerability in QFileSvr.400 File System []
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
IBM i 7.3 7.4, 7.5, and 7.6 is vulnerable to a stack buffer overflow, caused by improper bounds checking in the QFileSvr.400 file system. By sending a command in the QFileSvr.400 file system, a local authenticated attacker could cause undefined behavior.
| CWE | CWE-121 |
| Vendor | ibm |
| Product | i |
| Published | Nov 13, 2026 |
| Last Updated | Nov 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Affected Versions
IBM / i
7.6 7.5 7.4 7.3