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CRITICAL SEVERITY
CVE-2017-9791 Apache · Struts 1

Apache Struts 1 Improper Input Validation Vulnerability

Technical Severity

CVSS v3.1 Metrics

CRITICAL
9.8 / 10
Minimal Risk Critical
Vector Specification
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Likelihood

EPSS Prediction

94.24 %
Predictive Probability
Percentile Rank
99.9 th

Documented as more likely to be exploited than 99.9% of known CVEs.

Detection Date

Feb 10, 2022

Remediation Due

Aug 10, 2022

CISA Catalog Active

Threat Analysis

The Struts 1 plugin in Apache Struts might allow remote code execution via a malicious field value passed in a raw message to the ActionMessage.

Remediation Directive

Apply updates per vendor instructions.

External Intelligence