CVE-2025-54388

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

MEDIUM
4.6
CVSS Score
Published: July 30, 2025 at 01:24 PM UTC
Updated: June 17, 2026 at 09:40 AM UTC
2 products affected across 2 vendorsMobyMoby

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Severity
MEDIUM4.6
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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. 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 The vulnerability only affects explicitly published ports - unpublished ports remain protected.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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

28.2.0 ≤ v < 28.3.3
Affected range stops below 28.3.3, so it looks safe — our inference, not a vendor statement
v < 28.3.3
Affected range stops below 28.3.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-909

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