CVE-2021-36226

Western Digital My Cloud devices before OS5 do not use cryptographically signed Firmware upgrade files.

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.81% chance of exploitation in the next 30 days, 56th percentile

Published

2023-02-06

Updated

2025-03-26

Proof-of-concept exploits (2)

• pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2020/weekend_destroyer/weekend_destroyer…862★ · 2025-04-16
• https://www.youtube.com/watch?v=vsg9YgvGBec

Security advisories

• https://krebsonsecurity.com/2021/07/another-0-day-looms-for-many-western-digital-users

References

• CVE Record
• NVD entry

Related

• CVE-2014-1201
• CVE-2014-1836
• CVE-2014-2921
• CVE-2014-2922
• CVE-2014-7862
• CVE-2016-6598