CVE-2021-36224
Western Digital My Cloud devices before OS5 have a nobody account with a blank password.
Western Digital My Cloud devices before OS5 have a nobody account with a blank password.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
9.8
Western Digital My Cloud devices before OS5 have a nobody account with a blank password.
- Record
CVE-2021-36224- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-798
- Updated
- 2026-11-02
CVE List No score
Western Digital My Cloud devices before OS5 have a nobody account with a blank password.
- Record
CVE-2021-36224- Updated
- 2026-11-02
EUVDEUVD-2021-22844 No score
Western Digital My Cloud devices before OS5 have a nobody account with a blank password.
- Record
EUVD-2021-22844- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hj2g-q4fc-38mp
9.8
Western Digital My Cloud devices before OS5 have a nobody account with a blank password.
Western Digital My Cloud devices before OS5 have a nobody account with a blank password.
- Record
GHSA-hj2g-q4fc-38mp- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-798
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-36224 is a critical vulnerability (CVSS 9.8) in Westerndigital My Cloud Os, published February 6, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.19%, the 68th percentile. No source names a fixed version.