CVE-2025-46599 (CVSS 6.8)

Description

CNCF K3s 1.32 before 1.32.4-rc1+k3s1 has a Kubernetes kubelet configuration change with the unintended consequence that, in some situations, ReadOnlyPort is set to 10255. For example, the default behavior of a K3s online installation might allow unauthenticated access to this port, exposing credentials.

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CVSS v3.1 Score

6.8

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

Weakness Type (CWE)

CWE-1188 CWE-1188

References

Other References

https://cloud.google.com/kubernetes-engine/docs/how-to/disable-kubelet-readonly-port https://github.com/f1veT/BUG/issues/2 https://github.com/k3s-io/k3s/commit/097b63e588e3c844cdf9b967bcd0a69f4fc0aa0a https://github.com/k3s-io/k3s/compare/v1.32.3+k3s1...v1.32.4-rc1+k3s1 https://github.com/k3s-io/k3s/issues/12164

Frequently Asked Questions

What is CVE-2025-46599? +

CNCF K3s 1.32 before 1.32.4-rc1+k3s1 has a Kubernetes kubelet configuration change with the unintended consequence that, in some situations, ReadOnlyPort is set to 10255. For example, the default behavior of a K3s online installation might allow unauthenticated access to this port, exposing credentials. It has a CVSS v3.1 base score of 6.8 (MEDIUM).

How severe is CVE-2025-46599? +

CVE-2025-46599 has a CVSS v3.1 score of 6.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2025-46599? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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