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CVE-2025-25977

Estado: AnalizadaCrítica (9.8)—

An issue in canvg v.4.0.2 allows an attacker to execute arbitrary code via the Constructor of the class StyleElement.

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).

🎯 Técnicas ATT&CK

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

Vulnerabilidad remota sin autenticación en librería JavaScript (canvg): inyección de código arbitrario a través del constructor de StyleElement, permitiendo ejecución de código en cliente/servidor que consuma la librería.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementVulnerability ScanningRestrict Web-Based ContentNetwork SegmentationLimit Software InstallationLimit Access to Resource Over Network

Tecnologías afectadas (1)

Canvg — Canvg

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-25977",
  "cveTags": [],
  "metrics": {
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      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-25977",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-03-12T18:19:55.256032Z"
        }
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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        }
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  ],
  "published": "2025-03-10T16:15:13.633",
  "references": [
    {
      "url": "https://github.com/canvg/canvg/issues/1749",
      "tags": [
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        "Issue Tracking"
      ],
      "source": "cve@mitre.org"
    },
    {
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
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      "description": [
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          "value": "CWE-1321"
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  "descriptions": [
    {
      "lang": "en",
      "value": "An issue in canvg v.4.0.2 allows an attacker to execute arbitrary code via the Constructor of the class StyleElement."
    },
    {
      "lang": "es",
      "value": "Un problema en canvg v.4.0.2 permite a un atacante ejecutar código arbitrario a través del Constructor de la clase StyleElement."
    }
  ],
  "lastModified": "2026-06-17T09:01:22.420",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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}