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.
Published: 2026-03-27
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized modification of firewall state
Action: Apply workaround
AI Analysis

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Remediation

Vendor Workaround

To mitigate this issue, ensure that the firewalld desktop policy is not active on systems where local unprivileged user access is a concern. If firewalld is not required, it can be disabled. Disabling firewalld may impact network services that rely on it. To disable firewalld: sudo systemctl stop firewalld sudo systemctl disable firewalld A system restart or service reload may be required for changes to take full effect.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4585-1 firewalld security update
History

Fri, 15 May 2026 19:30:00 +0000

Type Values Removed Values Added
References

Thu, 30 Apr 2026 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Firewalld
Firewalld firewalld
CPEs cpe:2.3:a:firewalld:firewalld:*:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
Vendors & Products Firewalld
Firewalld firewalld

Mon, 30 Mar 2026 08:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat firewalld
Redhat openshift Container Platform
Vendors & Products Redhat firewalld
Redhat openshift Container Platform

Fri, 27 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

threat_severity

Moderate


Fri, 27 Mar 2026 06:00:00 +0000

Type Values Removed Values Added
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.
Title Firewalld: firewalld: local unprivileged user can modify firewall state due to d-bus setter mis-authorization
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-279
CPEs cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'}


Subscriptions

Firewalld Firewalld
Redhat Enterprise Linux Firewalld Openshift Openshift Container Platform
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-05-15T18:32:41.691Z

Reserved: 2026-03-27T05:23:36.264Z

Link: CVE-2026-4948

cve-icon Vulnrichment

Updated: 2026-05-15T18:32:41.691Z

cve-icon NVD

Status : Modified

Published: 2026-03-27T06:16:39.543

Modified: 2026-05-15T19:17:04.917

Link: CVE-2026-4948

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-03-27T00:00:00Z

Links: CVE-2026-4948 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-03-30T07:59:51Z

Weaknesses