# CVE-2026-4948: firewalld: A flaw was found in firewalld

CVE-2026-4948 is fixed in 6 products on 1 platform, first by RHSA-2026:67843, released March 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-4948
- Priority: Routine
- CVSS: 5.5 (moderate)
- EPSS: 0.0013
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 27, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | firewall-applet RHEL 9 | 0:1.3.4-20.el9_8 | [RHSA-2026:67585](https://patchblox.com/security/data/fix/linux/rhsa-2026-67585.md) | Sep 19, 2026 |
| Linux | firewall-applet almalinux 9 | 1.3.4-20.el9_8 | [ALSA-2026:67585](https://patchblox.com/security/data/fix/linux/alsa-2026-67585.md) | Sep 15, 2026 |
| Linux | firewall-applet ol 9 | 0:1.3.4-20.0.1.el9_8 | [ELSA-2026-67585](https://patchblox.com/security/data/fix/linux/elsa-2026-67585.md) | Sep 16, 2026 |
| Linux | firewall-config RHEL 9 | 0:1.3.4-20.el9_8 | [RHSA-2026:67585](https://patchblox.com/security/data/fix/linux/rhsa-2026-67585.md) | Sep 19, 2026 |
| Linux | firewall-config almalinux 9 | 1.3.4-20.el9_8 | [ALSA-2026:67585](https://patchblox.com/security/data/fix/linux/alsa-2026-67585.md) | Sep 15, 2026 |
| Linux | firewall-config ol 9 | 0:1.3.4-20.0.1.el9_8 | [ELSA-2026-67585](https://patchblox.com/security/data/fix/linux/elsa-2026-67585.md) | Sep 16, 2026 |
| Linux | firewalld Debian 12.15 (bookworm) | 1.3.3-1~deb12u2 | [DEBIAN-CVE-2026-4948](https://patchblox.com/security/data/fix/linux/debian-cve-2026-4948.md) | Mar 27, 2026 |
| Linux | firewalld Debian 13.5 (trixie) | 2.3.1-1+deb13u1 | [DEBIAN-CVE-2026-4948](https://patchblox.com/security/data/fix/linux/debian-cve-2026-4948.md) | Mar 27, 2026 |
| Linux | firewalld Debian 14 | 2.4.0-2 | [DEBIAN-CVE-2026-4948](https://patchblox.com/security/data/fix/linux/debian-cve-2026-4948.md) | Mar 27, 2026 |
| Linux | firewalld RHEL 10 | 2.3.1-1.el10_0.1 | [RHSA-2026:67843](https://patchblox.com/security/data/fix/linux/rhsa-2026-67843.md) | Mar 27, 2026 |
| Linux | firewalld RHEL 9 | 0:1.3.4-20.el9_8 | [RHSA-2026:67585](https://patchblox.com/security/data/fix/linux/rhsa-2026-67585.md) | Sep 19, 2026 |
| Linux | firewalld almalinux 9 | 1.3.4-20.el9_8 | [ALSA-2026:67585](https://patchblox.com/security/data/fix/linux/alsa-2026-67585.md) | Sep 15, 2026 |
| Linux | firewalld amzn 2023 | 1.2.3-1.amzn2023.0.2 | [ALAS2023-2026-1636](https://patchblox.com/security/data/fix/linux/alas2023-2026-1636.md) | Apr 27, 2026 |
| Linux | firewalld ol 9 | 0:1.3.4-20.0.1.el9_8 | [ELSA-2026-67585](https://patchblox.com/security/data/fix/linux/elsa-2026-67585.md) | Sep 16, 2026 |
| Linux | firewalld opensuse-leap 16.0 | 2.1.2-160000.3.1 | [OPENSUSE-SU-2026:21032-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21032-1.md) | Jun 22, 2026 |
| Linux | firewalld rocky 9 | 0:1.3.4-20.el9_8 | [RLSA-2026:67585](https://patchblox.com/security/data/fix/linux/rlsa-2026-67585.md) | Sep 17, 2026 |
| Linux | firewalld sles 15.7 | 1.3.4-150600.13.6.1 | [SUSE-SU-2026:2745-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-2745-1.md) | Jul 3, 2026 |
| Linux | firewalld sles 16.0 | 2.1.2-160000.3.1 | [SUSE-SU-2026:22343-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22343-1.md) | Jun 22, 2026 |
| Linux | firewalld-filesystem RHEL 9 | 0:1.3.4-20.el9_8 | [RHSA-2026:67585](https://patchblox.com/security/data/fix/linux/rhsa-2026-67585.md) | Sep 19, 2026 |
| Linux | firewalld-filesystem almalinux 9 | 1.3.4-20.el9_8 | [ALSA-2026:67585](https://patchblox.com/security/data/fix/linux/alsa-2026-67585.md) | Sep 15, 2026 |
| Linux | firewalld-filesystem amzn 2023 | 1.2.3-1.amzn2023.0.2 | [ALAS2023-2026-1636](https://patchblox.com/security/data/fix/linux/alas2023-2026-1636.md) | Apr 27, 2026 |
| Linux | firewalld-filesystem ol 9 | 0:1.3.4-20.0.1.el9_8 | [ELSA-2026-67585](https://patchblox.com/security/data/fix/linux/elsa-2026-67585.md) | Sep 16, 2026 |
| Linux | firewalld-test amzn 2023 | 1.2.3-1.amzn2023.0.2 | [ALAS2023-2026-1636](https://patchblox.com/security/data/fix/linux/alas2023-2026-1636.md) | Apr 27, 2026 |
| Linux | python3-firewall RHEL 9 | 0:1.3.4-20.el9_8 | [RHSA-2026:67585](https://patchblox.com/security/data/fix/linux/rhsa-2026-67585.md) | Sep 19, 2026 |
| Linux | python3-firewall almalinux 9 | 1.3.4-20.el9_8 | [ALSA-2026:67585](https://patchblox.com/security/data/fix/linux/alsa-2026-67585.md) | Sep 15, 2026 |
| Linux | python3-firewall amzn 2023 | 1.2.3-1.amzn2023.0.2 | [ALAS2023-2026-1636](https://patchblox.com/security/data/fix/linux/alas2023-2026-1636.md) | Apr 27, 2026 |
| Linux | python3-firewall ol 9 | 0:1.3.4-20.0.1.el9_8 | [ELSA-2026-67585](https://patchblox.com/security/data/fix/linux/elsa-2026-67585.md) | Sep 16, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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