CVE-2020-27744 json
An issue was discovered on Western Digital My Cloud NAS devices before 5.04.114.
published 2020-10-29 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-20248
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 6.2%
- EPSS 6.2% chance of exploitation in 30 days, percentile 93%
- public exploits
- 0
- none known
Summary
An issue was discovered on Western Digital My Cloud NAS devices before 5.04.114. They allow remote code execution with resultant escalation of privileges.
Patch / fix
- westerndigital my_cloud_firmware 5.04.114
Exploit prediction
6.16% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- comparitech.com https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
comparitech.com
/blog/information-security/security-vulnerabilities-80000-devices-update-now/
exploit, third-party-advisory
-
westerndigital.com
/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114
vendor-advisory
Sources
- CVE List CVE-2020-27744
- NVD CVE-2020-27744
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