CVE-2006-1547Actively exploitedAdded to KEV 2022-01-21

Apache Struts 1 ActionForm Denial-of-Service Vulnerability

Apache, Struts 1

Description

ActionForm in Apache Struts versions before 1.2.9 with BeanUtils 1.7 contains a vulnerability that allows for denial-of-service (DoS).

CVSS severity for this advisory hasn't been enriched from NVD yet, check back shortly.

EPSS, exploit probability

Critical

54.6%

estimated chance of real-world exploitation in the next 30 days, higher than 99.0% of every CVE FIRST.org scores

Refreshed 10/28/2026, via FIRST.org's EPSS model, not CVSS, this measures likelihood of exploitation, not how severe it would be.

Required action

Apply updates per vendor instructions.

CISA-recommended due date: 2022-07-21

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