Description
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; redhat: enterprise linux
References7
- access.redhat.com/security/cve/CVE-2026-4948 MitigationVendor Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2452086 Issue TrackingVendor Advisory
- access.redhat.com/errata/RHBA-2026:28238
- access.redhat.com/errata/RHSA-2026:67585
- access.redhat.com/errata/RHSA-2026:67843
- access.redhat.com/errata/RHSA-2026:76844
- lists.debian.org/debian-lts-announce/2026/05/msg00029.html
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - EPSS — exploit probability
- 0% percentile: 2 · as of 12 November 2026
- CWE
- CWE-279
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.