How severe is CVE-2017-17560?

CVE-2017-17560 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-17560 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 73% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-17560?

CVE-2017-17560 affects Westerndigital My Cloud Pr4100 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-17560?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2017-17560 published?

CVE-2017-17560 was published on 2017-12-12 and last updated on 2026-06-17.

CVE-2017-17560

CVE-2017-17560 is a critical-severity vulnerability in Westerndigital My Cloud Pr4100 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 73% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 73% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Westerndigital My Cloud Pr4100 Firmware
Published: 2017-12-12
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2017-17560?: 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.
How severe is CVE-2017-17560?: CVE-2017-17560 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-17560 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 73% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-17560?: CVE-2017-17560 affects Westerndigital My Cloud Pr4100 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-17560?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-17560 published?: CVE-2017-17560 was published on 2017-12-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:westerndigital:my_cloud_pr4100_firmware:2.30.172:*:*:*:*:*:*:*

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