CVE-2021-3310

—

CVSS 3.1

7.8 high

EPSS

1%p61

Published

Mar 10, 2021 (Mar 10, 2021)

Modified

Jun 17, 2026

Description

Western Digital My Cloud OS 5 devices before 5.10.122 mishandle Symbolic Link Following on SMB and AFP shares. This can lead to code execution and information disclosure (by reading local files).

Vendors: westerndigital
Products: my cloud os
Weakness: CWE-59
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.0%)

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