CVE-2018-1727: IBM InfoSphere Information Server

Critical severity, CVSS 9.1. EPSS: 2.5% chance of exploitation in the next 30 days.

IBM InfoSphere Information Server 9.1, 11.3, 11.5, and 11.7 is vulnerable to a XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 147630.

Affected products

• IBM InfoSphere Information Server: version 9.1 only; version 11.3 only; version 11.5 only; version 11.7 only

Published 2019-02-15. Last modified 2026-06-17.