CVE-2026-10109

Critical

Description

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.

SeverityCritical
CVSS9.8
Exploit probability—
ProductIbm Db2
PublishedJun 30, 2026
First seenJun 30, 2026

How to fix

Affected products

ProductAffected versionsFixed in
ibm db211.5.0 ≤ v ≤ 11.5.9, 12.1.0 ≤ v ≤ 12.1.4—

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