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Vulnerability record · CVE-2020-27160 · published 27 October 2020

CVE-2020-27160: Westerndigital my cloud firmware path traversal vulnerability

Westerndigital · My Cloud Firmware

Addressed remote code execution vulnerability in AvailableApps.php that allowed escalation of privileges in Western Digital My Cloud NAS devices prior to 5.04.114 (issue 3 of 3).

9.8 CVSS 3.1 Critical EPSS 4.9% · top 8.3% CWE-22 · Path traversal
9.8CVSS 3.1 base score, v2 7.5
4.9%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 AvailableApps.php that allowed escalation of privileges in Western Digital My Cloud NAS devices prior to 5.04.114 (issue 3 of 3).

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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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2020-27160), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.