CVE-2019-9951 json
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…
published 2019-04-24 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-19305
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- western_digital my_cloud_mirror_gen_2_firmware 2.31.174
- western_digital my_cloud_ex2_ultra_firmware 2.31.174
- western_digital my_cloud_ex2100_firmware 2.31.174
- western_digital my_cloud_ex4100 2.31.174
- western_digital my_cloud_dl2100 2.31.174
- western_digital my_cloud_dl4100_firmware 2.31.174
- western_digital my_cloud_pr2100_firmware 2.31.174
- western_digital my_cloud_pr4100 2.31.174
- western_digital my_cloud_firmware 2.31.174
Exploit prediction
1.68% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
-
community.wd.com
/t/new-release-my-cloud-firmware-versions-2-31-174-3-26-19/235932
release-notes, third-party-advisory
-
support.wdc.com
/downloads.aspx?g=2702&lang=en
third-party-advisory
- bnbdr.github.io /posts/wd/
- github.com /bnbdr/wd-rce/
Sources
- CVE List CVE-2019-9951
- NVD CVE-2019-9951
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.