Summary
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. The Moby daemon component (dockerd), which is developed as moby/moby is commonly referred to as Docker, or Docker Engine.
Firewalld is a daemon used by some Linux distributions to provide a dynamically managed firewall. When Firewalld is running, Docker uses its iptables backend to create rules, including rules to isolate containers in one bridge network from containers in other bridge networks.
Workarounds
After reloading firewalld, either:
- Restart the docker daemon,
- Re-create bridge networks, or
- Use rootless mode.
References
https://firewalld.org/
https://firewalld.org/documentation/howto/reload-firewalld.html
Impact
The iptables rules created by Docker are removed when firewalld is reloaded using, for example "firewall-cmd --reload", "killall -HUP firewalld", or "systemctl reload firewalld".
When that happens, Docker must re-create the rules. However, in affected versions of Docker, the iptables rules that isolate containers in different bridge networks from each other are not re-created.
Once these rules have been removed, containers have access to any port, on any container, in any non-internal bridge network, running on the Docker host.
Containers running in networks created with --internal or equivalent have no access to other networks. Containers that are only connected to these networks remain isolated after a firewalld reload.
Where Docker Engine is not running in the host's network namespace, it is unaffected. Including, for example, Rootless Mode, and Docker Desktop.
CVE-2025-54410 has a CVSS score of 3.3 (Low). The vector is requires local access, low privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (25.0.13, 28.0.0); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Remediation advice
Moby releases 28.0.0 and newer are not affected. A fix is available in moby release 25.0.13.
Frequently Asked Questions
- What is CVE-2025-54410? CVE-2025-54410 is a low-severity security vulnerability in github.com/docker/docker (go), affecting versions <= 25.0.12. It is fixed in 25.0.13, 28.0.0.
- How severe is CVE-2025-54410? CVE-2025-54410 has a CVSS score of 3.3 (Low). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of github.com/docker/docker are affected by CVE-2025-54410? github.com/docker/docker (go) versions <= 25.0.12 is affected.
- Is there a fix for CVE-2025-54410? Yes. CVE-2025-54410 is fixed in 25.0.13, 28.0.0. Upgrade to this version or later.
- Is CVE-2025-54410 exploitable, and should I be worried? Whether CVE-2025-54410 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2025-54410 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2025-54410?
- Upgrade
github.com/docker/dockerto 25.0.13 or later - Upgrade
github.com/docker/dockerto 28.0.0 or later
- Upgrade