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Vulnerability record · CVE-2020-25765 · published 27 October 2020

CVE-2020-25765: Westerndigital my cloud firmware improper input validation vulnerability

Westerndigital · My Cloud Firmware

Addressed remote code execution vulnerability in reg_device.php due to insufficient validation of user input.in Western Digital My Cloud Devices prior to 5.4.1140.

9.8 CVSS 3.1 Critical EPSS 6.1% · top 6.8% CWE-20 · Improper input validationCWE-78 · OS command injection
9.8CVSS 3.1 base score, v2 10.0
6.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Addressed remote code execution vulnerability in reg_device.php due to insufficient validation of user input.in Western Digital My Cloud Devices prior to 5.4.1140.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/ ExploitThird Party Advisory
https://www.westerndigital.com/support/productsecurity Vendor Advisory
https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114 Vendor Advisory
https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/ ExploitThird Party Advisory
https://www.westerndigital.com/support/productsecurity Vendor Advisory
https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114 Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-25765), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.