CVE-2017-9805Apache Struts Deserialization of Untrusted Data Vulnerability

The REST Plugin in Apache Struts 2.1.1 through 2.3.x before 2.3.34 and 2.5.x before 2.5.13 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.

8.1 HIGHEPSS 99.39%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-17 01:28 UTC

OverviewCVSS details

8.1HIGHCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Sep 15, 2017
Assigner: apache

Affected

Apache Struts (Apache Software Foundation)

Versions: Apache Struts before 2.3.34 and 2.5.x before 2.5.13

Exploitation

Public exploit: Yes · 1 reference
CISA KEV: Listed · Nov 3, 2021
KEV due date: May 3, 2022
Ransomware use: Unknown
SSVC: Exploitation active · Automatable no · Impact total

EPSS · FIRST, scored Nov 7

99.39%chance of exploitation in 30 days

Higher than 99.94% of CVEs

CVSS 3.1 · NVD

8.1High

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector: Network
Attack complexity: High
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

6.8Medium

AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack vector: Network
Attack complexity: Medium
Authentication: None
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
8.1	HIGH	3.1NVD	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8	MEDIUM	2.0NVD	AV:N/AC:M/Au:N/C:P/I:P/A:P

CISA required action

⚡ Known exploited · remediation due May 3, 2022

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Details

CVE ID: CVE-2017-9805
Status: Analyzed
Assigner (CNA): apache
Published: Sep 15, 2017
Last modified: 2026-06-17 01:28 UTC
Weaknesses: CWE-502

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 08:19 UTC.