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CVE-2025-54388

Moby's Firewalld reload makes published container ports accessible from remote hosts

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. In versions 28.2.0 through 28.3.2, when the firewalld service is reloaded it removes all iptables rules including those created by Docker. While Docker should automatically recreate these rules, versions before 28.3.3 fail to recreate the specific rules that block external access to containers. This means that after a firewalld reload, containers with ports published to localhost (like 127.0.0.1:8080) become accessible from remote machines that have network routing to the Docker bridge, even though they should only be accessible from the host itself. The vulnerability only affects explicitly published ports - unpublished ports remain protected. This issue is fixed in version 28.3.3.

CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Vendors
Docker Mirantis Mobyproject
Products
Engine Moby Mirantis Container Runtime and 1 more
CVE-2025-54410

Moby's Firewalld reload removes bridge network isolation

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.

CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Vendors
Docker Mirantis Mobyproject
Products
Engine Moby Mirantis Container Runtime and 1 more
CVE-2021-23218

Memory Leak in Mirantis Container Runtime (MCR) running in FIPS mode causes a Denial of Service

When running with FIPS mode enabled, Mirantis Container Runtime 20.10.8 leaks memory during TLS Handshakes which could be abused to cause a denial of service.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Mirantis
Products
Mirantis Container Runtime