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CVE-2025-54386

Traefik remote code execution

9.8 CRITICALEPSS 1.11%
  1. Published1 Aug 2025

Description

Traefik is an HTTP reverse proxy and load balancer. In versions 2.11.27 and below, 3.0.0 through 3.4.4 and 3.5.0-rc1, a path traversal vulnerability was discovered in WASM Traefik’s plugin installation mechanism. By supplying a maliciously crafted ZIP archive containing file paths with ../ sequences, an attacker can overwrite arbitrary files on the system outside of the intended plugin directory. This can lead to remote code execution (RCE), privilege escalation, persistence, or denial of service. This is fixed in versions 2.11.28, 3.4.5 and 3.5.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Traefik≥ 3.0.0 < 3.4.4 · < 2.11.7 · 3.5.0

Remediation

Fixed in
Traefik≥ 3.4.4

References

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Frequently asked

Is CVE-2025-54386 being actively exploited?

CVE-2025-54386 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.11%.

How severe is CVE-2025-54386?

CVE-2025-54386 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.11% probability of exploitation.

Which products are affected by CVE-2025-54386?

Affected products include Traefik.

How do I fix CVE-2025-54386?

Upgrade affected software to a fixed version, for example Traefik 3.4.4 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-54386 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.