CVE-2026-86093

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.ibm.com/support/pages/node/7286993	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:ibm:db2::::::::
	cpe:2.3:a:ibm:db2::::::::

History

No history.

Information

Published : 2026-09-10 22:17

Updated : 2026-09-14 20:10

NVD link : CVE-2026-86093

Mitre link : CVE-2026-86093

CVE.ORG link : CVE-2026-86093

JSON object : View

Products Affected

ibm

db2

CWE

CWE-121

Stack-based Buffer Overflow

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