Cisco Small Business SA520 and SA540 devices with firmware 2.1.71 and 2.2.0.7 allow ../ directory traversal in scgi-bin/platform.cgi via the thispage parameter, for reading arbitrary files.
Severity
CVSS 3.0
7.5 high
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
2.2% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)