CVE-2020-27159
Addressed remote code execution vulnerability in DsdkProxy.php due to insufficient sanitization and insufficient validation of user input in Western Digital My Cloud NAS devices prior to 5.04.114
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Addressed remote code execution vulnerability in DsdkProxy.php due to insufficient sanitization and insufficient validation of user input in Western Digital My Cloud NAS devices prior to 5.04.114
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 6.21% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- westerndigital/my cloud firmware
- Source
- cve@mitre.org
EPSS 6.2% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/Exploit, Third Party Advisory
- https://www.westerndigital.com/support/productsecurityVendor Advisory
- https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114Vendor Advisory
- https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/Exploit, Third Party Advisory
- https://www.westerndigital.com/support/productsecurityVendor Advisory
- https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.