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CVE Watch—

CVE-2017-9791

Apache Struts 1 Improper Input Validation Vulnerability

CVSS

—

No CVSS

EPSS

98.9%

p100

KEV

YES

Feb 10, 2022

Exploit Today

80

0-100

Published: — · Last modified: —

EPSS · 30d

98.9%EPSS · 30 days98.9%

2026-09-162026-10-14

KEV catalog record

Product

Apache / Struts 1

Vulnerability

Apache Struts 1 Improper Input Validation Vulnerability

Added to KEV

Feb 10, 2022

Remediate by

Aug 10, 2022

Known ransomware use

No

Summary description

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.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2017-9791

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

CVE-2006-1547—

KEV—80Apache Struts 1 ActionForm Denial-of-Service Vulnerability—