CVE-2019-9951

highpriority · track · 40EPSS 0.017 · 77 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.68% (77th) EPSS

CVSS 7.5 · high

Is it mine?

10 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8

v2.07.5highAV:N/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 10 · impact 6.4

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-434USprimary

affected products (10)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
western digital my cloud dl2100< 2.31.174nvdUScpe:2.3:o:western_digital:my_cloud_dl2100:*:*:*:*:*:*:*:*
western digital my cloud dl4100 firmware< 2.31.174nvdUScpe:2.3:o:western_digital:my_cloud_dl4100_firmware:*:*:*:*:*:*:*:*
western digital my cloud ex2 ultra firmware< 2.31.174nvdUScpe:2.3:o:western_digital:my_cloud_ex2_ultra_firmware:*:*:*:*:*:*:*:*
western digital my cloud ex2100 firmware< 2.31.174nvdUScpe:2.3:o:western_digital:my_cloud_ex2100_firmware:*:*:*:*:*:*:*:*
western digital my cloud ex4100< 2.31.174nvdUScpe:2.3:o:western_digital:my_cloud_ex4100:*:*:*:*:*:*:*:*
western digital my cloud firmware< 2.31.174nvdUScpe:2.3:o:western_digital:my_cloud_firmware:*:*:*:*:*:*:*:*
western digital my cloud mirror gen 2 firmware< 2.31.174nvdUScpe:2.3:o:western_digital:my_cloud_mirror_gen_2_firmware:*:*:*:*:*:*:*:*
western digital my cloud pr2100 firmware< 2.31.174nvdUScpe:2.3:o:western_digital:my_cloud_pr2100_firmware:*:*:*:*:*:*:*:*
western digital my cloud pr4100< 2.31.174nvdUScpe:2.3:o:western_digital:my_cloud_pr4100:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2019-04-24modified 2026-06-17

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+5024 more

references (13)

External citations — patches, advisories, analysis.

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