CVE-2019-18931: Western Digital My Cloud EX2 Ultra Firmware

High severity, CVSS 8.8. EPSS: 2.2% chance of exploitation in the next 30 days.

Western Digital My Cloud EX2 Ultra firmware 2.31.195 allows a Buffer Overflow with Extended Instruction Pointer (EIP) control via crafted GET/POST parameters.

Affected products

• Western Digital My Cloud EX2 Ultra Firmware: version 2.31.195 only

Published 2019-11-13. Last modified 2026-06-17.