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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 Reserved 2026-03-27 | Published 2026-03-27 | Updated 2026-05-15 | Assigner redhat




MEDIUM: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Problem types

Incorrect Execution-Assigned Permissions

Product status

Default status
unknown

Default status
affected

Default status
unknown

Default status
unknown

Default status
unknown

Timeline

2026-03-27:Reported to Red Hat.
2026-03-27:Made public.

Credits

Red Hat would like to thank Asim Viladi Oglu Manizada for reporting this issue.

References

lists.debian.org/debian-lts-announce/2026/05/msg00029.html

access.redhat.com/security/cve/CVE-2026-4948 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2452086 (RHBZ#2452086) issue-tracking

cve.org (CVE-2026-4948)

nvd.nist.gov (CVE-2026-4948)

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