CVE-2026-4948

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:firewalld:firewalld::::::::
	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*

History

26 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Se encontró una falla en firewalld. Un usuario local sin privilegios puede explotar esta vulnerabilidad al autorizar incorrectamente dos setters de D-Bus (Desktop Bus) en tiempo de ejecución, setZoneSettings2 y setPolicySettings. Esta autorización incorrecta permite al usuario modificar el estado del cortafuegos en tiempo de ejecución sin la autenticación adecuada, lo que lleva a cambios no autorizados en las configuraciones de seguridad de la red.

06 Oct 2026, 18:16

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:76844 -

16 Sep 2026, 13:18

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:67843 -

Information

Published : 2026-03-27 06:16

Updated : 2026-10-26 22:10

NVD link : CVE-2026-4948

Mitre link : CVE-2026-4948

CVE.ORG link : CVE-2026-4948

JSON object : View

Products Affected

firewalld

firewalld

redhat

enterprise_linux

CWE

CWE-279

Incorrect Execution-Assigned Permissions

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