CVE-2020-12830: Westerndigital My Cloud Firmware

Critical severity, CVSS 9.8. EPSS: 3.3% chance of exploitation in the next 30 days.

Addressed multiple stack buffer overflow vulnerabilities that could allow an attacker to carry out escalation of privileges through unauthorized remote code execution in Western Digital My Cloud devices before 5.04.114.

Affected products

• Westerndigital My Cloud Firmware: before 5.04.114 (fixed in 5.04.114)

Published 2020-10-27. Last modified 2026-06-17.