What’s Vulnerable › Vulnerabilities

CVE-2022-22991: Command injection through unsecured HTTP calls on Western Digital My Cloud devices

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-01-13 · updated 2026-06-17
• Weakness: CWE-78

Description

A malicious user on the same LAN could use DNS spoofing followed by a command injection attack to trick a NAS device into loading through an unsecured HTTP call. Addressed this vulnerability by disabling checks for internet connectivity using HTTP.

Affected products

• Western Digital My Cloud: before 5.19.117 — fixed in 5.19.117

How to fix

Upgrade to a fixed version: Western Digital My Cloud 5.19.117. Check the vendor advisory for mitigations.

References

• https://www.westerndigital.com/support/product-security/wdc-22002-my-cloud-os5-firmware-5-19-117
• https://www.zerodayinitiative.com/advisories/ZDI-22-077/
• https://www.westerndigital.com/support/product-security/wdc-22002-my-cloud-os5-firmware-5-19-117
• https://www.zerodayinitiative.com/advisories/ZDI-22-077/

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