CVE-2022-29843: Westerndigital My Cloud DL2100 Firmware

Critical severity, CVSS 9.8. EPSS: 1.2% chance of exploitation in the next 30 days.

A command injection vulnerability in the DDNS service configuration of Western Digital My Cloud OS 5 devices running firmware versions prior to 5.26.119 allows an attacker to execute code in the context of the root user.

Affected products

• Westerndigital My Cloud DL2100 Firmware: before 5.26.119 (fixed in 5.26.119)
• Westerndigital My Cloud DL4100 Firmware: before 5.26.119 (fixed in 5.26.119)
• Westerndigital My Cloud EX2100 Firmware: before 5.26.119 (fixed in 5.26.119)
• Westerndigital My Cloud EX2 Ultra Firmware: before 5.26.119 (fixed in 5.26.119)
• Westerndigital My Cloud EX4100 Firmware: before 5.26.119 (fixed in 5.26.119)
• Westerndigital My Cloud Mirror g2 Firmware: before 5.26.119 (fixed in 5.26.119)
• Westerndigital My Cloud PR2100 Firmware: before 5.26.119 (fixed in 5.26.119)
• Westerndigital My Cloud PR4100 Firmware: before 5.26.119 (fixed in 5.26.119)

Published 2023-01-26. Last modified 2026-06-17.