CVE-2026-10109: 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.

PriorityP264critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

0.86%

54.4th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
ibm	db2	11.5.0 – 11.5.9	—
ibm	db2	12.1.0 – 12.1.4	—

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