CVE-1999-0975

Estado: ModificadaMedia (4.6)—💥 Exploit

The Windows help system can allow a local user to execute commands as another user by editing a table of contents metafile with a .CNT extension and modifying the topic action to include the commands to be executed when the .hlp file is accessed.

CVSS

Versión: 2.0
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Puntuación base: 4.6

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 2.70%
Percentil entre todas las CVEs puntuadas: 85
Fecha de la puntuación: 7/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Publicado en Exploit-DB · Microsoft Windows 95/98/NT 4.0 - Help File Backdoor (10/12/1999)

Tecnologías afectadas (3)

Microsoft — Windows 95 Microsoft — Windows 98 Microsoft — Windows NT

CWE

NVD-CWE-Other

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-1999-0975",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": true,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "1999-12-10T05:00:00.000",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/868",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/868",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Windows help system can allow a local user to execute commands as another user by editing a table of contents metafile with a .CNT extension and modifying the topic action to include the commands to be executed when the .hlp file is accessed."
    }
  ],
  "lastModified": "2026-06-16T21:49:26.610",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_95:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "82F7322B-8022-4D0B-ADB3-D0F5B6F20309"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_98:*:gold:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2D3B703C-79B2-4FA2-9E12-713AB977A880"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E53CDA8E-50A8-4509-B070-CCA5604FFB21"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}