Which products and versions are affected by CVE-2017-17560?

Affected: My Cloud Pr4100 Firmware (Westerndigital) versions 2.30.172. The full list is in the CVE brief.

Is CVE-2017-17560 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Dec 12, 2017.

Is CVE-2017-17560 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2017-17560?

Public exploit code is available.

Is there a fix for CVE-2017-17560?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2017-17560 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2017-17560

CriticalExploitedPublic exploit

An issue was discovered on Western Digital MyCloud PR4100 2.30.172 devices.

Published Dec 12, 2017 · Updated May 12, 2026

Key Facts

Patch immediately

CVE-2017-17560 is a critical-severity vulnerability (CVSS 9.8 v3) affecting My Cloud Pr4100 Firmware (Westerndigital).
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Dec 12, 2017. Public exploit code is available.
EPSS estimates a 73% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3

9.8

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

EPSS (30-day exploit likelihood)

73%

Higher than 99.4% of all scored CVEs

Exploited in the wild

Yes

2 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2017-17560 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

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.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Jan 22, 2024	n/a	Not reported
CIRCL KEV	Dec 12, 2017	n/a	Not reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
My Cloud Pr4100 FirmwareWesterndigital	2.30.172	n/a

Timeline

Publicly disclosed
Dec 12, 2017
Added to CIRCL KEV
Dec 12, 2017
Added to Industry KEV feed
Jan 22, 2024
Last updated
May 12, 2026

Weakness Type

CWE-287 Improper Authentication

References

advisoryhttps://github.com/rapid7/metasploit-framework/pull/9248
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report
exploitVulnCheck exploitation report

10 more references in the full CVE brief

FAQ

Common Questions.

An issue was discovered on Western Digital MyCloud PR4100 2.30.172 devices.
Affected: My Cloud Pr4100 Firmware (Westerndigital) versions 2.30.172. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Dec 12, 2017.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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