CVE-2026-86093

HIGH CVSS 3.1: 7.5 EPSS 0.47%
Updated Sep 12, 2026
IBM
Parameter Value
CVSS 7.5 (HIGH)
Type CWE-121 (Stack-based Buffer Overflow)
Vendor IBM
Public PoC No

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 could allow an attacker with the ability to control or impersonate a DRDA server endpoint to execute arbitrary commands on Db2 clients due to a stack-based buffer overflow that improperly copies user-controlled data into a fixed-size stack buffer without bounds checking.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products

ibm:db2