CVE-2025-61962

{
  "id": "CVE-2025-61962",
  "sourceIdentifier": "[email protected]",
  "published": "2025-10-04T03:15:37.870",
  "lastModified": "2026-10-19T16:10:00.260",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In fetchmail before 6.5.6, the SMTP client can crash when authenticating upon receiving a 334 status code in a malformed context."
    },
    {
      "lang": "es",
      "value": "En fetchmail antes de 6.5.6, el cliente SMTP puede colapsar al autenticarse al recibir un código de estado 334 en un contexto malformado."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "fetchmail",
          "product": "fetchmail",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "5.9.9",
              "lessThan": "6.5.6",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-10-06T14:20:46.927097Z",
          "id": "CVE-2025-61962",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-142"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://gitlab.com/fetchmail/fetchmail/-/commit/4c3cebfa4e659fb778ca2cae0ccb3f69201609a8",
      "source": "[email protected]"
    },
    {
      "url": "https://www.fetchmail.info/fetchmail-SA-2025-01.txt",
      "source": "[email protected]"
    },
    {
      "url": "https://www.openwall.com/lists/oss-security/2025/10/03/2",
      "source": "[email protected]"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2025/10/04/3",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}