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CVE-2017-2896

Estado: ModificadaAlta (7.8)—

An exploitable out-of-bounds write vulnerability exists in the xls_mergedCells function of libxls 1.4. . A specially crafted XLS file can cause a memory corruption resulting in remote code execution. An attacker can send malicious XLS file to trigger this vulnerability.

CVSS

Probabilidad de explotación (EPSS)

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).

Tecnologías afectadas (2)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2017-2896",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
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        "cvssData": {
          "scope": "UNCHANGED",
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          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
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    "cvssMetricV31": [
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        "type": "Primary",
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          "attackVector": "LOCAL",
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          "attackComplexity": "LOW",
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          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
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  },
  "affected": [
    {
      "source": "talos-cna@cisco.com",
      "affectedData": [
        {
          "vendor": "libxls",
          "product": "libxls",
          "versions": [
            {
              "status": "affected",
              "version": "1.4"
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          ]
        }
      ]
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  ],
  "published": "2017-11-20T22:29:00.293",
  "references": [
    {
      "url": "https://security.gentoo.org/glsa/202003-64",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "talos-cna@cisco.com"
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    {
      "url": "https://www.debian.org/security/2018/dsa-4173",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "talos-cna@cisco.com"
    },
    {
      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0403",
      "tags": [
        "Third Party Advisory"
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      "source": "talos-cna@cisco.com"
    },
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
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      "tags": [
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An exploitable out-of-bounds write vulnerability exists in the xls_mergedCells function of libxls 1.4. . A specially crafted XLS file can cause a memory corruption resulting in remote code execution. An attacker can send malicious XLS file to trigger this vulnerability."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad explotable fuera de límites en la función xls_mergedCells de libxls 1.4. Un archivo XLS especialmente manipulado puede provocar una corrupción de memoria que daría lugar a la ejecución remota de código. Un atacante puede enviar un archivo XLS malicioso para provocar esta vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T01:17:05.240",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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  "sourceIdentifier": "talos-cna@cisco.com"
}