A vulnerability in the FTP service of Western Digital My Cloud OS 5 devices running firmware versions prior to 5.26.119 allows an attacker to read and write arbitrary files. This could lead to a full NAS compromise and would give remote execution capabilities to the attacker.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.7, requiring local system access to exploit but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), for affected systems. Impacting 16 products from westerndigital, from westerndigital, from westerndigital and 13 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2023-01-26T21:15:33.953
2026-06-17T04:40:48.980
Modified
CVSSv3.1: 6.7 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | westerndigital | my_cloud_pr2100_firmware | < 5.26.119 | Yes |
| Hardware | westerndigital | my_cloud_pr2100 | - | No |
| Operating System | westerndigital | my_cloud_pr4100_firmware | < 5.26.119 | Yes |
| Hardware | westerndigital | my_cloud_pr4100 | - | No |
| Operating System | westerndigital | my_cloud_ex4100_firmware | < 5.26.119 | Yes |
| Hardware | westerndigital | my_cloud_ex4100 | - | No |
| Operating System | westerndigital | my_cloud_ex2_ultra_firmware | < 5.26.119 | Yes |
| Hardware | westerndigital | my_cloud_ex2_ultra | - | No |
| Operating System | westerndigital | my_cloud_mirror_g2_firmware | < 5.26.119 | Yes |
| Hardware | westerndigital | my_cloud_mirror_g2 | - | No |
| Operating System | westerndigital | my_cloud_dl2100_firmware | < 5.26.119 | Yes |
| Hardware | westerndigital | my_cloud_dl2100 | - | No |
| Operating System | westerndigital | my_cloud_dl4100_firmware | < 5.26.119 | Yes |
| Hardware | westerndigital | my_cloud_dl4100 | - | No |
| Operating System | westerndigital | my_cloud_ex2100_firmware | < 5.26.119 | Yes |
| Hardware | westerndigital | my_cloud_ex2100 | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For westerndigital's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.