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GHSA-435C-Q8RW-J678

Vulnerability from github – Published: 2025-06-04 18:30 – Updated: 2025-06-04 18:30

Details

A vulnerability in the SSH implementation of Cisco Nexus Dashboard Fabric Controller (NDFC) could allow an unauthenticated, remote attacker to impersonate Cisco NDFC-managed devices.

This vulnerability is due to insufficient SSH host key validation. An attacker could exploit this vulnerability by performing a machine-in-the-middle attack on SSH connections to Cisco NDFC-managed devices, which could allow an attacker to intercept this traffic. A successful exploit could allow the attacker to impersonate a managed device and capture user credentials.

Severity

8.7 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-20163"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-322"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-04T17:15:26Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability in the SSH implementation of Cisco Nexus Dashboard Fabric Controller (NDFC) could allow an unauthenticated, remote attacker to impersonate Cisco NDFC-managed devices.\n\nThis vulnerability is due to insufficient SSH host key validation. An attacker could exploit this vulnerability by performing a machine-in-the-middle attack on SSH connections to Cisco NDFC-managed devices, which could allow an attacker to intercept this traffic. A successful exploit could allow the attacker to impersonate a managed device and capture user credentials.",
  "id": "GHSA-435c-q8rw-j678",
  "modified": "2025-06-04T18:30:58Z",
  "published": "2025-06-04T18:30:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20163"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ndfc-shkv-snQJtjrp"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-20163 (GCVE-0-2025-20163)

Vulnerability from cvelistv5 – Published: 2025-06-04 16:17 – Updated: 2026-02-26 18:27

Title

Cisco Nexus Dashboard Fabric Controller SSH Host Key Vulnerability

Summary

A vulnerability in the SSH implementation of Cisco Nexus Dashboard Fabric Controller (NDFC) could allow an unauthenticated, remote attacker to impersonate Cisco NDFC-managed devices. This vulnerability is due to insufficient SSH host key validation. An attacker could exploit this vulnerability by performing a machine-in-the-middle attack on SSH connections to Cisco NDFC-managed devices, which could allow an attacker to intercept this traffic. A successful exploit could allow the attacker to impersonate a managed device and capture user credentials.

Severity

8.7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-06-05 03:55 UTC

CWE

CWE-322 - Key Exchange without Entity Authentication

Assigner

cisco mitre root

References

1 reference

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…

Impacted products

2 products

Vendor	Product	Version
Cisco	Cisco Data Center Network Manager	Affected: 11.2(1) Affected: 7.0(2) Affected: 10.3(2)IPFM Affected: 10.1(1) Affected: 7.2(3) Affected: 7.2(2) Affected: 7.2(1) Affected: 11.0(1) Affected: 10.4(1) Affected: 10.2(1) Affected: 7.2(2a) Affected: 10.1(2) Affected: 7.1(1) Affected: 12.1(1) Affected: 11.1(1) Affected: 10.3(1) Affected: 10.3(1)R(1) Affected: 7.0(1) Affected: 10.0(1) Affected: 7.1(2) Affected: 11.4(1) Affected: 10.4(2) Affected: 11.3(1) Affected: 11.5(1) Affected: 11.5(2) Affected: 11.5(3) Affected: 12.0.1a Affected: 11.5(3a) Affected: 12.0.2d Affected: 12.0.2f Affected: 11.5(4) Affected: 12.1.1 Affected: 12.1.1e Affected: 12.1.1p Affected: 12.1.2e Affected: 12.1.2p Affected: 12.1.3b Affected: 12.2.1 Affected: 12.2.2
Cisco	Cisco Nexus Dashboard	Affected: 3.1(1k) Affected: 3.1(1l) Affected: 3.2(1e) Affected: 3.2(1i) Affected: 3.3(1a) Affected: 3.3(1b) Affected: 3.3(2b) Affected: 4.0(1i) Affected: 3.3(2g)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-20163",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-05T03:55:24.665920Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        "providerMetadata": {
          "dateUpdated": "2026-02-26T18:27:37.121Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
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              "version": "11.2(1)"
            },
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              "status": "affected",
              "version": "7.0(2)"
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              "status": "affected",
              "version": "10.3(2)IPFM"
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              "status": "affected",
              "version": "10.1(1)"
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              "status": "affected",
              "version": "7.2(3)"
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            {
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              "status": "affected",
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              "status": "affected",
              "version": "10.4(1)"
            },
            {
              "status": "affected",
              "version": "10.2(1)"
            },
            {
              "status": "affected",
              "version": "7.2(2a)"
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              "status": "affected",
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            {
              "status": "affected",
              "version": "7.1(1)"
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            {
              "status": "affected",
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              "status": "affected",
              "version": "11.1(1)"
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              "status": "affected",
              "version": "10.3(1)"
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              "status": "affected",
              "version": "10.3(1)R(1)"
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            {
              "status": "affected",
              "version": "10.0(1)"
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            {
              "status": "affected",
              "version": "7.1(2)"
            },
            {
              "status": "affected",
              "version": "11.4(1)"
            },
            {
              "status": "affected",
              "version": "10.4(2)"
            },
            {
              "status": "affected",
              "version": "11.3(1)"
            },
            {
              "status": "affected",
              "version": "11.5(1)"
            },
            {
              "status": "affected",
              "version": "11.5(2)"
            },
            {
              "status": "affected",
              "version": "11.5(3)"
            },
            {
              "status": "affected",
              "version": "12.0.1a"
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            {
              "status": "affected",
              "version": "11.5(3a)"
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              "status": "affected",
              "version": "12.0.2d"
            },
            {
              "status": "affected",
              "version": "12.0.2f"
            },
            {
              "status": "affected",
              "version": "11.5(4)"
            },
            {
              "status": "affected",
              "version": "12.1.1"
            },
            {
              "status": "affected",
              "version": "12.1.1e"
            },
            {
              "status": "affected",
              "version": "12.1.1p"
            },
            {
              "status": "affected",
              "version": "12.1.2e"
            },
            {
              "status": "affected",
              "version": "12.1.2p"
            },
            {
              "status": "affected",
              "version": "12.1.3b"
            },
            {
              "status": "affected",
              "version": "12.2.1"
            },
            {
              "status": "affected",
              "version": "12.2.2"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Cisco Nexus Dashboard",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "3.1(1k)"
            },
            {
              "status": "affected",
              "version": "3.1(1l)"
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            {
              "status": "affected",
              "version": "3.2(1e)"
            },
            {
              "status": "affected",
              "version": "3.2(1i)"
            },
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              "status": "affected",
              "version": "3.3(1a)"
            },
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              "status": "affected",
              "version": "3.3(1b)"
            },
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              "status": "affected",
              "version": "3.3(2b)"
            },
            {
              "status": "affected",
              "version": "4.0(1i)"
            },
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              "status": "affected",
              "version": "3.3(2g)"
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        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
            "version": "3.1"
          },
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          "descriptions": [
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      "providerMetadata": {
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        }
      ],
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          "CSCwm50501"
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      "title": "Cisco Nexus Dashboard Fabric Controller SSH Host Key Vulnerability"
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    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

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.

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.
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GHSA-435C-Q8RW-J678

CVE-2025-20163 (GCVE-0-2025-20163)

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