CVE-2019-9951
9.8 · CRITICALOverview
CVE-2019-9951 is a critical-severity vulnerability affecting western_digital my_cloud_mirror_gen_2_firmware. It was published on April 24, 2019 and has a CVSS 3.0 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Western Digital My Cloud, My Cloud Mirror Gen2, My Cloud EX2 Ultra, My Cloud EX2100, My Cloud EX4100, My Cloud DL2100, My Cloud DL4100, My Cloud PR2100 and My Cloud PR4100 firmware before 2.31.174 is affected by an unauthenticated file upload vulnerability. The page web/jquery/uploader/uploadify.php can be accessed without any credentials, and allows uploading arbitrary files to any location on the attached storage.
Remediation
Check the references section for vendor advisories and patches from western_digital. Update my_cloud_mirror_gen_2_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| western_digital | my_cloud_mirror_gen_2_firmware | >= 0, < 2.31.174 | Affected |
| western_digital | my_cloud_ex2_ultra_firmware | >= 0, < 2.31.174 | Affected |
| western_digital | my_cloud_ex2100_firmware | >= 0, < 2.31.174 | Affected |
| western_digital | my_cloud_ex4100 | >= 0, < 2.31.174 | Affected |
| western_digital | my_cloud_dl2100 | >= 0, < 2.31.174 | Affected |
| western_digital | my_cloud_dl4100_firmware | >= 0, < 2.31.174 | Affected |
| western_digital | my_cloud_pr2100_firmware | >= 0, < 2.31.174 | Affected |
| western_digital | my_cloud_pr4100 | >= 0, < 2.31.174 | Affected |
| western_digital | my_cloud_firmware | >= 0, < 2.31.174 | Affected |
References
Frequently Asked Questions
What is CVE-2019-9951?
CVE-2019-9951 is a critical-severity vulnerability affecting western_digital my_cloud_mirror_gen_2_firmware. It was published on April 24, 2019 and has a CVSS 3.0 base score of 9.8 (CRITICAL).
How severe is CVE-2019-9951?
This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-9951?
Check the references section for vendor advisories and patches from western_digital. Update my_cloud_mirror_gen_2_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-9951?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-9951 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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