Vulnerability · Published Jul 30, 2025 · Assigned by GitHub_M
CVE-2025-54410Moby's Firewalld reload removes bridge network isolation
Low 3.3
In plain English
A low-severity security flaw in moby from moby. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | docker.io | no fix listed | DEBIAN-CVE-2025-54410 |
| Debian:13 | docker.io | no fix listed | DEBIAN-CVE-2025-54410 |
| Debian:14 | docker.io | no fix listed | DEBIAN-CVE-2025-54410 |
| Go | github.com/docker/docker | 28.0.0 | GHSA-4vq8-7jfc-9cvp |
| Go | github.com/docker/docker | 25.0.13 | GHSA-4vq8-7jfc-9cvp |
| Go | github.com/docker/docker | 25.0.13+incompatible | GO-2025-3829 |
| Ubuntu:25.10 | docker.io | no fix listed | UBUNTU-CVE-2025-54410 |
| Ubuntu:26.04:LTS | docker.io | no fix listed | UBUNTU-CVE-2025-54410 |
| Ubuntu:26.10 | docker.io | no fix listed | UBUNTU-CVE-2025-54410 |
Affected products (as reported)
Weakness: CWE-909 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
References
- https://github.com/moby/moby/security/advisories/GHSA-4vq8-7jfc-9cvp x_refsource_CONFIRM
- https://firewalld.org/documentation/howto/reload-firewalld.html x_refsource_MISC