Vulnerability-Lookup

CVE-2025-46599 (GCVE-0-2025-46599)

Vulnerability from cvelistv5 – Published: 2025-04-25 00:00 – Updated: 2025-04-25 14:28

Summary

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.

Severity

6.8 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-25 14:27 UTC

CWE

CWE-1188 - Initialization of a Resource with an Insecure Default

Assigner

mitre mitre root

References

5 references

URL	Tags
https://github.com/f1veT/BUG/issues/2
https://cloud.google.com/kubernetes-engine/docs/h…
https://github.com/k3s-io/k3s/issues/12164
https://github.com/k3s-io/k3s/commit/097b63e588e3…
https://github.com/k3s-io/k3s/compare/v1.32.3+k3s…

Impacted products

1 product

Vendor	Product	Version	CPE status
K3s	K3s	Affected: 1.32 , < 1.32.4-rc1+k3s (custom) cpe:2.3:a:k3s:k3s::::::::

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2025-46599

Vulnerability from fkie_nvd - Published: 2025-04-25 05:15 - Updated: 2026-06-17 09:26

Severity

6.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

Summary

References

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

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "K3s",
          "vendor": "K3s",
          "versions": [
            {
              "lessThan": "1.32.4-rc1+k3s",
              "status": "affected",
              "version": "1.32",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "CNCF K3s 1.32 anterior a 1.32.4-rc1+k3s1 tiene un cambio de configuraci\u00f3n de kubelet de Kubernetes con la consecuencia no deseada de que, en algunas situaciones, ReadOnlyPort se establece en 10255. Por ejemplo, el comportamiento predeterminado de una instalaci\u00f3n en l\u00ednea de K3s podr\u00eda permitir el acceso no autenticado a este puerto, exponiendo las credenciales."
    }
  ],
  "id": "CVE-2025-46599",
  "lastModified": "2026-06-17T09:26:41.557",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
          "version": "3.1"
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        "type": "Secondary"
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      "url": "https://cloud.google.com/kubernetes-engine/docs/how-to/disable-kubelet-readonly-port"
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GHSA-864F-7XJM-2JP2

Vulnerability from github – Published: 2025-04-25 06:30 – Updated: 2025-05-05 21:57

Summary

CNCF K3s Kubernetes kubelet configuration exposes credentials

Details

Severity

6.8 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/k3s-io/k3s"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.32.0-rc1"
            },
            {
              "fixed": "1.32.4-rc1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-46599"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1188"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-04-25T15:07:32Z",
    "nvd_published_at": "2025-04-25T05:15:33Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-864f-7xjm-2jp2",
  "modified": "2025-05-05T21:57:30Z",
  "published": "2025-04-25T06:30:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-46599"
    },
    {
      "type": "WEB",
      "url": "https://github.com/f1veT/BUG/issues/2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/k3s-io/k3s/issues/12164"
    },
    {
      "type": "WEB",
      "url": "https://github.com/k3s-io/k3s/commit/097b63e588e3c844cdf9b967bcd0a69f4fc0aa0a"
    },
    {
      "type": "WEB",
      "url": "https://cloud.google.com/kubernetes-engine/docs/how-to/disable-kubelet-readonly-port"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/k3s-io/k3s"
    },
    {
      "type": "WEB",
      "url": "https://github.com/k3s-io/k3s/compare/v1.32.3+k3s1...v1.32.4-rc1+k3s1"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2025-3646"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "CNCF K3s Kubernetes kubelet configuration exposes credentials"
}

OPENSUSE-SU-2025:15059-1

Vulnerability from csaf_opensuse - Published: 2025-05-07 00:00 - Updated: 2025-05-07 00:00

Summary

govulncheck-vulndb-0.0.20250506T153719-1.1 on GA media

Severity

Moderate

Scope

12 vulnerabilities in this advisory, including CVE-2025-46599.

CVE-2025-46599

Recommended: 4 products

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2025-46599 (GCVE-0-2025-46599)

FKIE_CVE-2025-46599

GHSA-864F-7XJM-2JP2

OPENSUSE-SU-2025:15059-1

Tags

Sightings

Nomenclature

Related by attack behaviour