CVE-2018-20487: Inteno Iopsys

High severity, CVSS 8.8. EPSS: 1.9% chance of exploitation in the next 30 days.

An issue was discovered in the firewall3 component in Inteno IOPSYS 1.0 through 3.16. The attacker must make a JSON-RPC method call to add a firewall rule as an "include" and point the "path" argument to a malicious script or binary. This gets executed as root when the firewall changes are committed.

Affected products

• Inteno Iopsys: from 1.0, up to and including 3.16

Published 2019-04-11. Last modified 2026-06-17.