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CVE-2026-111126

Estado: AplazadaMedia (6.9)—
Gravedad6.9Media · CVSS 4.0
Probabilidad de explotación0.20 %mayor que el 9 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

catdoc hasta la versión 0.95 incluida contiene una vulnerabilidad de lectura fuera de límites en el manejador del registro MULRK de process_item() en src/xlsparse.c, que permite a atacantes leer más allá del búfer estático rec mediante una columna final manipulada. Los atacantes pueden proporcionar un libro de trabajo .xls manipulado o un flujo BIFF con un valor endcol grande a xls2csv para revelar la memoria de proceso adyacente en forma de celdas CSV o provocar la caída del proceso.

Traducción automática del texto original de NVD (en inglés).

CVSS

Puntuación base
6.9
Versión
4.0
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
0.20 %
Percentil entre todas las CVEs puntuadas
9
Fecha de la puntuación
20/10/2026

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).

Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Inferido por reglas deterministas a partir del vector CVSS y la CWE. Solo orientativo.

Mitigaciones ATT&CK que cubren estas técnicas

Restrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationExecution PreventionBehavior Prevention on EndpointDisable or Remove Feature or Program

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Catdoc Project — CatdocAI

CWE

Referencias

Mostrar las 5 referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-111126",
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "options": [
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            {
              "automatable": "no"
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            {
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          "version": "2.0.3",
          "timestamp": "2026-10-15T19:53:46.325067Z"
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          "valueDensity": "NOT_DEFINED",
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          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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      "affectedData": [
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          "repo": "https://github.com/vbwagner/catdoc",
          "vendor": "catdoc",
          "product": "catdoc",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
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          "packageURL": "pkg:github/vbwagner/catdoc",
          "collectionURL": "https://github.com",
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      "url": "https://github.com/vbwagner/catdoc",
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      "url": "https://hackmd.io/@haind-pwn/catdoc-xls-mulrk-endcol-and-string-count-oob-read",
      "source": "disclosure@vulncheck.com"
    },
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      "url": "https://www.vulncheck.com/advisories/catdoc-through-0.95-out-of-bounds-read-in-xls2csv-mulrk-record-handler",
      "source": "disclosure@vulncheck.com"
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          "value": "CWE-125"
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    {
      "lang": "en",
      "value": "catdoc through 0.95 contains an out-of-bounds read vulnerability in the MULRK record handler of process_item() in src/xlsparse.c that allows attackers to read past the static rec buffer via a crafted end column. Attackers can supply a crafted .xls workbook or BIFF stream with a large endcol to xls2csv to disclose adjacent process memory as CSV cells or crash the process."
    }
  ],
  "lastModified": "2026-10-16T18:25:45.343",
  "sourceIdentifier": "disclosure@vulncheck.com"
}