CVE-2026-4948: Firewalld

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

A flaw was found in firewalld. A local unprivileged user can exploit this vulnerability by mis-authorizing two runtime D-Bus (Desktop Bus) setters, setZoneSettings2 and setPolicySettings. This mis-authorization allows the user to modify the runtime firewall state without proper authentication, leading to unauthorized changes in network security configurations.

Affected products

• Firewalld Firewalld: up to and including 2.4.0
• Red Hat Enterprise Linux: version 7.0 only

Published 2026-03-27. Last modified 2026-10-06.