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HIGH

CVE-2021-36225

CVSS v3

8.8

HIGH

EPSS Score

1.0 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Western Digital My Cloud devices before OS5 allow REST API access by low-privileged accounts, as demonstrated by API commands for firmware uploads and installation.

Technical details

Published
2023-02-06

Frequently asked questions

What is CVE-2021-36225?

Western Digital My Cloud devices before OS5 allow REST API access by low-privileged accounts, as demonstrated by API commands for firmware uploads and installation.

Is CVE-2021-36225 actively exploited?

Active exploitation of CVE-2021-36225 has not been confirmed. Its EPSS score was 1.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-36225?

CVE-2021-36225 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2021-36225 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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