High (8.8) in westerndigital my cloud os. EPSS 0.9% chance of exploitation in the next 30 days.
A post-authentication remote command injection vulnerability in a CGI file in Western Digital My Cloud OS 5 devices that could allow an attacker to build files with redirects and execute larger payloads.
This issue affects My Cloud OS 5 devices: before 5.26.300.
Severity
CVSS 3.1
8.8 high
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)