CVE-2017-12611: Apache Struts

Critical severity, CVSS 9.8. EPSS: 87.1% chance of exploitation in the next 30 days.

In Apache Struts 2.0.0 through 2.3.33 and 2.5 through 2.5.10.1, using an unintentional expression in a Freemarker tag instead of string literals can lead to a RCE attack.

Affected products

• Apache Struts: version 2.0.1 only; version 2.0.2 only; version 2.0.3 only; version 2.0.4 only; version 2.0.5 only; version 2.0.6 only; …

Published 2017-09-20. Last modified 2026-06-17.