CVE-2022-29840: Westerndigital My Cloud OS

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

Server-Side Request Forgery (SSRF) vulnerability that could allow a rogue server on the local network to modify its URL to point back to the loopback adapter was addressed in Western Digital My Cloud OS 5 devices. This could allow the URL to exploit other vulnerabilities on the local server.This issue affects My Cloud OS 5 devices before 5.26.202.

Affected products

• Westerndigital My Cloud OS: from 5.02.104, before 5.26.202 (fixed in 5.26.202)

Published 2023-05-10. Last modified 2026-06-17.