CVE-2021-36226

State: Published
Severity: 9.8 Critical
Published: Feb 6, 2023
Updated: Mar 26, 2025
Reserved: Jul 8, 2021

Description

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

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-347 Improper Verification of Cryptographic Signature

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://krebsonsecurity.com/2021/07/another-0-day-looms-for-many-western-digital-users/
https://www.youtube.com/watch?v=vsg9YgvGBec
https://github.com/pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2020/weekend_destroyer/weekend_destroyer.md

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