CVE-2023-22819: Uncontrolled resource consumption vulnerability in Western Digital My Cloud, My Cloud Home and SanDisk ibi products

Severity: medium (CVSS 4.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-02-05 · updated 2026-06-17
Weakness: CWE-770

Description

An uncontrolled resource consumption vulnerability issue that could arise by sending crafted requests to a service to consume a large amount of memory, eventually resulting in the service being stopped and restarted was discovered in Western Digital My Cloud Home, My Cloud Home Duo, SanDisk ibi and Western Digital My Cloud OS 5 devices. This issue requires the attacker to already have root privileges in order to exploit this vulnerability. This issue affects My Cloud Home and My Cloud Home Duo: before 9.5.1-104; ibi: before 9.5.1-104; My Cloud OS 5: before 5.27.161.

Affected products

Westerndigital My Cloud Dl2100 Firmware: before 5.27.161 — fixed in 5.27.161
Westerndigital My Cloud Dl4100 Firmware: before 5.27.161 — fixed in 5.27.161
Westerndigital My Cloud Ex2100 Firmware: before 5.27.161 — fixed in 5.27.161
Westerndigital My Cloud Ex2 Ultra Firmware: before 5.27.161 — fixed in 5.27.161
Westerndigital My Cloud Ex4100 Firmware: before 5.27.161 — fixed in 5.27.161
Westerndigital My Cloud Glacier Firmware: before 5.27.161 — fixed in 5.27.161
Westerndigital My Cloud Home Duo Firmware: before 9.5.1-104 — fixed in 9.5.1-104
Westerndigital My Cloud Home Firmware: before 9.5.1-104 — fixed in 9.5.1-104
Westerndigital My Cloud Mirror G2 Firmware: before 5.27.161 — fixed in 5.27.161
Westerndigital My Cloud Pr4100 Firmware: before 5.27.161 — fixed in 5.27.161
Westerndigital Sandisk Ibi Firmware: before 9.5.1-104 — fixed in 9.5.1-104
Westerndigital Wd Cloud Firmware: before 5.27.161 — fixed in 5.27.161

How to fix

Upgrade to a fixed version: Westerndigital My Cloud Dl2100 Firmware 5.27.161; Westerndigital My Cloud Dl4100 Firmware 5.27.161; Westerndigital My Cloud Ex2100 Firmware 5.27.161; Westerndigital My Cloud Ex2 Ultra Firmware 5.27.161; Westerndigital My Cloud Ex4100 Firmware 5.27.161; Westerndigital My Cloud Glacier Firmware 5.27.161; Westerndigital My Cloud Home Duo Firmware 9.5.1-104; Westerndigital My Cloud Home Firmware 9.5.1-104; Westerndigital My Cloud Mirror G2 Firmware 5.27.161; Westerndigital My Cloud Pr4100 Firmware 5.27.161; Westerndigital Sandisk Ibi Firmware 9.5.1-104; Westerndigital Wd Cloud Firmware 5.27.161. Check the vendor advisory for mitigations.

References

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