CVE-2026-4948
Low
No strong exploitation signal.
CVSS base
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS — probability of exploitation (30 days)
0.1%
2.4th percentile
CISA KEV
Not listed
Weakness / dates
CWE-279
Published 2026-03-27 · modified 2026-09-16
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | N | None |
| Integrity | H | High |
| Availability | N | None |
Timeline
- 2026-03-27 — Published (NVD)
- 2026-09-16 — Last modified (NVD)
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.
Affected
References
- 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/security/cve/CVE-2026-4948
- https://bugzilla.redhat.com/show_bug.cgi?id=2452086
- https://lists.debian.org/debian-lts-announce/2026/05/msg00029.html