CVE-2026-10109 CRITICAL

CVE-2026-10109: IBM® Db2® is vulnerable to remote code execution due to improper pre-auth DRDA handshake handling

Vendor Ibm
Product Db2
Weakness CWE-94 · Code injection
Published June 30, 2026
Last update July 1, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.4 is vulnerable to remote code execution due to improper pre-auth DRDA handshake handling.

Key dates

02Disclosure timeline

June 30, 2026 CVE published
July 1, 2026 Record updated