CVE-2025-54410

Moby's Firewalld reload removes bridge network isolation

Published Jul 30, 2025 CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Description
Moby is an open source container framework developed by Docker Inc. that is distributed as Docker Engine, Mirantis Container Runtime, and various other downstream projects/products. A firewalld vulnerability affects Moby releases before 28.0.0. When firewalld reloads, Docker fails to re-create iptables rules that isolate bridge networks, allowing any container to access all ports on any other container across different bridge networks on the same host. This breaks network segmentation between containers that should be isolated, creating significant risk in multi-tenant environments. Only containers in --internal networks remain protected.
Workarounds include reloading firewalld and either restarting the docker daemon, re-creating bridge networks, or using rootless mode. Maintainers anticipate a fix for this issue in version 25.0.13.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-23166 Moby firewalld reload removes bridge network isolation
Github GHSA Github GHSA GHSA-4vq8-7jfc-9cvp Moby firewalld reload removes bridge network isolation
History
Type Values Removed Values Added
CPEs cpe:2.3:a:mobyproject:moby:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Docker
Docker engine
Docker moby
Mirantis
Mirantis mirantis Container Runtime
Mobyproject
Mobyproject moby
Vendors & Products Docker
Docker engine
Docker moby
Mirantis
Mirantis mirantis Container Runtime
Mobyproject
Mobyproject moby
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Description Moby is an open source container framework developed by Docker Inc. that is distributed as Docker Engine, Mirantis Container Runtime, and various other downstream projects/products. A firewalld vulnerability affects Moby releases before 28.0.0. When firewalld reloads, Docker fails to re-create iptables rules that isolate bridge networks, allowing any container to access all ports on any other container across different bridge networks on the same host. This breaks network segmentation between containers that should be isolated, creating significant risk in multi-tenant environments. Only containers in --internal networks remain protected. Workarounds include reloading firewalld and either restarting the docker daemon, re-creating bridge networks, or using rootless mode. Maintainers anticipate a fix for this issue in version 25.0.13.
Title Moby's Firewalld reload removes bridge network isolation
Weaknesses CWE-909
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 30, 2025, 1:38 PM
Reserved
Jul 21, 2025, 11:18 PM
Status
Analyzed
Published
Jul 30, 2025, 2:15 PM
Modified
Jun 17, 2026, 9:40 AM
Severity
Low
Public date
Jul 30, 2025, 1:24 PM