CVE-2026-17270

MEDIUM CVSS 3.1: 5.5 EPSS 0.21%
Updated Sep 11, 2026
IBM
Parameter Value
CVSS 5.5 (MEDIUM)
Type CWE-121 (Stack-based Buffer Overflow)
Vendor IBM
Public PoC No

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to cause a denial of service due to a stack-based buffer overflow.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 4

Configuration From (including) Up to (excluding)
Ibm I
cpe:2.3:o:ibm:i:7.3:*:*:*:*:*:*:*
Ibm I
cpe:2.3:o:ibm:i:7.4:*:*:*:*:*:*:*
Ibm I
cpe:2.3:o:ibm:i:7.5:*:*:*:*:*:*:*
Ibm I
cpe:2.3:o:ibm:i:7.6:*:*:*:*:*:*:*