CVE-2026-4948Firewalld: firewalld: local unprivileged user can modify firewall state due to d-bus setter mis-authorization
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 10 and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-279
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:2.4.2-1.el10_2 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus | from 0:2.3.1-1.el10_0.1 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus | from 0:1.3.4-15.el9_6.1 not affected | CNA record |
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift | 4 | CNA record |
firewalld firewalld firewalld:firewalld | through 2.4.0 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 7.0 | NVD |
References
- https://access.redhat.com/errata/RHBA-2026:28238vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:67585vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:67843vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:76844vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-4948vdb-entry, x-refsource-redhat, mitigation, vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2452086issue-tracking, x-refsource-redhat, vendor-advisory
- https://lists.debian.org/debian-lts-announce/2026/05/msg00029.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.