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CVE-2020-13580

Estado: ModificadaAlta (7.8)—

An exploitable heap-based buffer overflow vulnerability exists in the PlanMaker document parsing functionality of SoftMaker Office 2021’s PlanMaker application. A specially crafted document can cause the document parser to explicitly trust a length from a particular record type and use it to write a 16-bit null relative to a buffer allocated on the stack. Due to a lack of bounds-checking on this value, this can allow an attacker to write to memory outside of the buffer and controllably corrupt memory. This can allow an attacker to earn code execution under the context of the application. An attacker can entice the victim to open a document 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 (1)

Softmaker — Planmaker 2021

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2020-13580",
  "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
      }
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    "cvssMetricV30": [
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        "type": "Secondary",
        "source": "talos-cna@cisco.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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          "userInteraction": "REQUIRED",
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  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Softmaker Software",
          "versions": [
            {
              "status": "affected",
              "version": "GmbH SoftMaker Office PlanMaker 2021 (Revision 1014)"
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  "published": "2021-02-04T07:15:12.993",
  "references": [
    {
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1191",
      "tags": [
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        "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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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "talos-cna@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
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    },
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      "description": [
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          "value": "CWE-787"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An exploitable heap-based buffer overflow vulnerability exists in the PlanMaker document parsing functionality of SoftMaker Office 2021’s PlanMaker application. A specially crafted document can cause the document parser to explicitly trust a length from a particular record type and use it to write a 16-bit null relative to a buffer allocated on the stack. Due to a lack of bounds-checking on this value, this can allow an attacker to write to memory outside of the buffer and controllably corrupt memory. This can allow an attacker to earn code execution under the context of the application. An attacker can entice the victim to open a document to trigger this vulnerability."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de desbordamiento de búfer en la región heap de la memoria explotable en la funcionalidad de análisis de documentos de PlanMaker de la aplicación PlanMaker de SoftMaker Office 2021. Un documento especialmente diseñado puede causar que el analizador de documentos confíe explícitamente en una longitud de un tipo de registro en particular y lo use para escribir un null de 16 bits en relación con un búfer asignado en la pila. Debido a una falta de comprobación de límites en este valor, esto puede permitir a un atacante escribir en la memoria fuera del búfer y corromper la memoria de manera controlable. Esto puede permitir a un atacante ganarse la ejecución de código en el contexto de la aplicación. Un atacante puede atraer a la víctima para que abra un documento para activar esta vulnerabilidad"
    }
  ],
  "lastModified": "2026-06-17T02:53:23.733",
  "configurations": [
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}