CVE-2025-54410

Moby's Firewalld reload removes bridge network isolation

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.

Category

3.3
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.01%
Third-Party Advisory github.com
Affected: moby moby
Published at:
Updated at:

References

Link Tags
https://github.com/moby/moby/security/advisories/GHSA-4vq8-7jfc-9cvp third party advisory
https://firewalld.org/documentation/howto/reload-firewalld.html product

Frequently Asked Questions

What is the severity of CVE-2025-54410?
CVE-2025-54410 has been scored as a low severity vulnerability.
How to fix CVE-2025-54410?
To fix CVE-2025-54410, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-54410 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-54410 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-54410?
CVE-2025-54410 affects moby moby.
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