Is CVE-2017-17560 actively exploited?

Yes. KEV Intelligence tracks CVE-2017-17560 as a known exploited vulnerability. Confidence is high.

What exploitation activity has KEV Intelligence observed?

KEV Intelligence has not yet recorded sensor-observed exploitation attempts for CVE-2017-17560. Our sensors continue to monitor for activity targeting this CVE.

Which versions are affected?

Version-level data is not available; KEV Intelligence tracks Western Digital MyCloud PR4100.

No. CVE-2017-17560 is not currently listed in CISA KEV.

Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2017-17560

MyCloud PR4100

Western Digital / MyCloud PR4100

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Severity: CVSS 9.8 · Critical
Confidence: High
Exploit status: Exploited in the wild
EPSS: 73.4%
First observed: —
Last observed: —

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2017-17560 is an unauthenticated vulnerability affecting Western Digital MyCloud PR4100. An issue was discovered on Western Digital MyCloud PR4100 2.30.172 devices. The web administration component,...

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.

Who is affected?

Western Digital / MyCloud PR4100.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

An issue was discovered on Western Digital MyCloud PR4100 2.30.172 devices

An issue was discovered on Western Digital MyCloud PR4100 2.30.172 devices. The web administration component, /web/jquery/uploader/multi_uploadify.php, provides multipart upload functionality that is accessible without authentication and can be used to place a file anywhere on the device's file system.

This allows an attacker the ability to upload a PHP shell onto the device and obtain arbitrary code execution as root.

Published: 12 Dec 2017
Exploitation Reported: 12 Dec 2017
Attack vector: Remote
Complexity: Low
Privileges: None
User interaction: None

CVE References

CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2017-17560
43356 exploit-db.com · Exploit https://www.exploit-db.com/exploits/43356/
download.exploitee.rs/file/generic/Exploiteers-DEFCON25.pdf download.exploitee.rs · CVE Record https://download.exploitee.rs/file/generic/Exploiteers-DEFCON25.pdf
GitHub — rapid7/metasploit-framework github.com · CVE Record https://github.com/rapid7/metasploit-framework/pull/9248

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

The Shadowserver

Recorded 12 Dec 2017

Independent exploitation attestation added to the KEV Intelligence record.

Proof of concept available

Recorded 28 Apr 2025

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

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Source	Added
The Shadowserver First	2017-12-12 18:00 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets: 0
User-Agents: 0

Raw values available in Pro and Enterprise.

Scanner coverage

Metasploit template detected 28 Apr 2025.

View Metasploit template

Virtual patch status

No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

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Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner	Reference	Detected
Metasploit	https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/wd_mycloud_multiupload_upload.rb	28 Apr 2025

Risk and context

Severity, weaknesses, and research context

CVSS v3.0

9.8 Critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

73.4%

Weaknesses

Improper Authentication CWE-287

All CVSS Scores

CVSS v3.0 9.8 Critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 10.0 High

AV:N/AC:L/Au:N/C:C/I:C/A:C

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

wd_mycloud_multiupload_upload

metasploit · Created Unknown

Metasploit module for CVE-2017-17560

Timeline

From disclosure to observed exploitation

28 Apr 2025
Metasploit module available

Exploit module available
28 Apr 2025
Public PoC available

Public proof-of-concept code published
12 Dec 2017
Added to KEV Intelligence KEV Feed

High-confidence, third-party attested exploitation
12 Dec 2017
CVE published

Vulnerability disclosed publicly
12 Dec 2017
CVE ID reserved

Identifier reserved by the CNA

Pro API

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Evidence confidence and provenance
First-party sensor telemetry
PoC and scanner references
Affected versions and enrichment
Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2017-17560

Free JSON includes basic KEV fields

{
  "cve_id": "CVE-2017-17560",
  "confidence": "High",
  "cvss_score": 9.8,
  "cvss_estimated": false,
  "epss_score": 0.73404,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

Early warning alerts

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