FKIE_CVE-2025-41251

Vulnerability from fkie_nvd - Published: 2025-09-29 19:15 - Updated: 2026-06-17 09:22
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
VMware NSX contains a weak password recovery mechanism vulnerability. An unauthenticated malicious actor may exploit this to enumerate valid usernames, potentially enabling brute-force attacks. Impact: Username enumeration → credential brute force risk. Attack Vector: Remote, unauthenticated. Severity: Important. CVSSv3: 8.1 (High). Acknowledgments: Reported by the National Security Agency. Affected Products:VMware NSX 9.x.x.x, 4.2.x, 4.1.x, 4.0.x NSX-T 3.x VMware Cloud Foundation (with NSX) 5.x, 4.5.x Fixed Versions: NSX 9.0.1.0; 4.2.2.2/4.2.3.1 http://4.2.2.2/4.2.3.1 ; 4.1.2.7; NSX-T 3.2.4.3; CCF async patch (KB88287). Workarounds: None.
References
security@vmware.comhttps://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/36150
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "NSX",
          "vendor": "vmware",
          "versions": [
            {
              "status": "affected",
              "version": "VMware NSX - 9.x.x.x, 4.2.x, 4.1.x, 4.0.x",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "VMware NSX-T - 3.x",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "VMware Cloud Foundation (with NSX) - 5.x, 4.5.x",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "VMware NSX 9.0.1.0; 4.2.2.2/4.2.3.1; 4.1.2.7; NSX-T 3.2.4.3; CCF async patch (KB88287)",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@vmware.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "VMware NSX contains a weak password recovery mechanism vulnerability. An unauthenticated malicious actor may exploit this to enumerate valid usernames, potentially enabling brute-force attacks.\n\nImpact:\u00a0Username enumeration \u2192 credential brute force risk.\nAttack Vector:\u00a0Remote, unauthenticated.\nSeverity:\u00a0Important.\nCVSSv3:\u00a08.1 (High).\n\nAcknowledgments:\u00a0Reported by the National Security Agency.\n\nAffected Products:VMware NSX 9.x.x.x, 4.2.x, 4.1.x, 4.0.x\n\nNSX-T 3.x\nVMware Cloud Foundation (with NSX) 5.x, 4.5.x\n\nFixed Versions: NSX 9.0.1.0;  4.2.2.2/4.2.3.1 http://4.2.2.2/4.2.3.1 ; 4.1.2.7; NSX-T 3.2.4.3; CCF async patch (KB88287).\nWorkarounds: None."
    }
  ],
  "id": "CVE-2025-41251",
  "lastModified": "2026-06-17T09:22:40.500",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9,
        "source": "security@vmware.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-41251",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-09-30T03:55:13.799400Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-09-29T19:15:35.157",
  "references": [
    {
      "source": "security@vmware.com",
      "url": "https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/36150"
    }
  ],
  "sourceIdentifier": "security@vmware.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-640"
        }
      ],
      "source": "security@vmware.com",
      "type": "Secondary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.


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