CVE-2022-36330: Buffer Overflow Vulnerability in Western Digital My Cloud Home and ibi devices

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-10 · updated 2026-06-17
Weakness: CWE-120

Description

A buffer overflow vulnerability was discovered on firmware version validation that could lead to an unauthenticated remote code execution in Western Digital My Cloud Home, My Cloud Home Duo and SanDisk ibi devices. An attacker would require exploitation of another vulnerability to raise their privileges in order to exploit this buffer overflow vulnerability. This issue affects My Cloud Home and My Cloud Home Duo: before 9.4.0-191; ibi: before 9.4.0-191.

Affected products

Westerndigital My Cloud Home Duo Firmware: before 9.4.0-191 — fixed in 9.4.0-191
Westerndigital My Cloud Home Firmware: before 9.4.0-191 — fixed in 9.4.0-191
Westerndigital Sandisk Ibi Firmware: before 9.4.0-191 — fixed in 9.4.0-191

How to fix

Upgrade to a fixed version: Westerndigital My Cloud Home Duo Firmware 9.4.0-191; Westerndigital My Cloud Home Firmware 9.4.0-191; Westerndigital Sandisk Ibi Firmware 9.4.0-191. Check the vendor advisory for mitigations.

References

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