CVE Watch—

CVE-2017-9805

Apache Struts Deserialization of Untrusted Data Vulnerability

CVSS

—

No CVSS

EPSS

99.4%

p100

KEV

YES

Nov 3, 2021

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

99.4%EPSS · 30 days99.4%

2026-09-162026-10-14

KEV catalog record

Product

Apache / Struts

Vulnerability

Apache Struts Deserialization of Untrusted Data Vulnerability

Added to KEV

Nov 3, 2021

Remediate by

May 3, 2022

Known ransomware use

Summary description

Apache Struts REST Plugin uses an XStreamHandler with an instance of XStream for deserialization without any type filtering, which can lead to remote code execution when deserializing XML payloads.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2017-9805

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