CVE-2020-27158
9.8
CRITICAL · CVSS 3.1 · EPSS 7.5% (pctl 94)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
Addressed remote code execution vulnerability in cgi_api.php that allowed escalation of privileges in Western Digital My Cloud NAS devices prior to 5.04.114.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 7.5% — more likely to be exploited than 94% of all CVEs |
| Weakness | CWE-78 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2020-10-27 |
| Last modified | 2026-06-17 |
Affected (6)
| Vendor | Product |
|---|---|
| westerndigital | my cloud ex4100 |
| westerndigital | my cloud expert series ex2 |
| westerndigital | my cloud firmware |
| westerndigital | my cloud mirror - gen 2 |
| westerndigital | my cloud pr2100 |
| westerndigital | my cloud pr4100 |
References
- https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/
- https://www.westerndigital.com/support/productsecurity
- https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114
- https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/
- https://www.westerndigital.com/support/productsecurity
- https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114
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