An issue was discovered on Western Digital MyCloud PR4100 2.30.172 devices.
Priority HIGH 80CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
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.
Why it matters now
EPSS 0.73404 99th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:westerndigital:my_cloud_pr4100_firmware:2.30.172:*:*:*:*:*:*:* | 2.30.172 | Vulnerable | Westerndigital |
| cpe:2.3:h:westerndigital:my_cloud_pr4100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Westerndigital |
- cpe:2.3:o:westerndigital:my_cloud_pr4100_firmware:2.30.172:*:*:*:*:*:*:* Versions 2.30.172 Vulnerable ·Westerndigital
- cpe:2.3:h:westerndigital:my_cloud_pr4100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Westerndigital
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-17560
- 2026-10-03 Alias added: GHSA-gchv-qvcf-v9x3
References
More Westerndigital My Cloud Pr4100 Firmware vulnerabilities
- TI-2022-12204 Western Digital My Cloud OS 5 arbitrary file read and write vulnerability via ftp CVSS 3.1CRITICAL 9.8
- TI-2022-16678 Impersonation attack causing an Authentication Bypass on Western Digital devices CVSS 3.1CRITICAL 10.0
- TI-2022-07170 Western Digital My Cloud OS 5 and My Cloud Home Unauthenticated Arbitrary File Write Vulnerability in Netatalk CVSS 3.1CRITICAL 10.0
- TI-2019-07319 Western Digital My Cloud, My Cloud Mirror Gen2, My Cloud EX2 Ultra, My Cloud EX2100, My… CVSS 3.0CRITICAL 9.8
- TI-2022-12203 Western Digital My Cloud OS 5 devices Command Injection Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2019-07318 Western Digital My Cloud Cloud, Mirror Gen2, EX2 Ultra, EX2100, EX4100, DL2100, DL4100… CVSS 3.0HIGH 8.8
Sources
- CVE-2017-17560 · CVE Program
- CVE-2017-17560 · NVD
- FIRST EPSS
- GHSA-gchv-qvcf-v9x3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences