CVE-2009-1906: IBM DB2

Medium severity, CVSS 4.3. EPSS: 2% chance of exploitation in the next 30 days.

The DRDA Services component in IBM DB2 9.1 before FP7 and 9.5 before FP4 allows remote attackers to cause a denial of service (memory corruption and application crash) via an IPv6 address in the correlation token in the APPID string, as demonstrated by an APPID string sent by the third-party DataDirect JDBC driver 3.7.32.

Affected products

• IBM DB2: version 9.1 only; version 9.5 only

Published 2009-06-03. Last modified 2026-06-16.