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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://access.redhat.com/security/cve/CVE-2026-4948 Mitigation, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2452086 Issue Tracking, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.5 · firewalld, redhatNVD modified 2026-10-26 22:10
Affected (CPE criteria) 2
cpe:2.3:a:firewalld:firewalld:*:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
References 7
- https://access.redhat.com/errata/RHBA-2026:28238
- https://access.redhat.com/errata/RHSA-2026:67585
- https://access.redhat.com/errata/RHSA-2026:67843
- https://access.redhat.com/errata/RHSA-2026:76844
- https://access.redhat.com/security/cve/CVE-2026-4948 Mitigation, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2452086 Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2026/05/msg00029.html