CVE-2021-36226

Western Digital My Cloud devices before OS5 do not use cryptographically signed Firmware upgrade files.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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CISA-ADPADP
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 12%
VendorProductVersion
westerndigitalmy_cloud_os
𝑥
< 5.02.104
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2020/weekend_destroyer/weekend_destroyer.md
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
https://krebsonsecurity.com/2021/07/another-0-day-looms-for-many-western-digital-users/
https://www.youtube.com/watch?v=vsg9YgvGBec