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CVE-2021-34201

Estado: ModificadaAlta (7.1)—

D-Link DIR-2640-US 1.01B04 is vulnerable to Buffer Overflow. There are multiple out-of-bounds vulnerabilities in some processes of D-Link AC2600(DIR-2640). Local ordinary users can overwrite the global variables in the .bss section, causing the process crashes or changes.

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)

Dlink — Dir-2640-us Firmware

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-34201",
  "cveTags": [],
  "metrics": {
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        "source": "nvd@nist.gov",
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          "baseScore": 3.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 4.9,
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        "obtainAllPrivilege": false,
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  "affected": [
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      "affectedData": [
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  "published": "2021-06-16T20:15:07.573",
  "references": [
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          "lang": "en",
          "value": "CWE-787"
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  "descriptions": [
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      "value": "D-Link DIR-2640-US 1.01B04 is vulnerable to Buffer Overflow. There are multiple out-of-bounds vulnerabilities in some processes of D-Link AC2600(DIR-2640). Local ordinary users can overwrite the global variables in the .bss section, causing the process crashes or changes."
    },
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      "lang": "es",
      "value": "D-Link DIR-2640-US versión 1.01B04 es vulnerable al Desbordamiento del Búfer. Se presentan múltiples vulnerabilidades de desbordamiento de búfer en algunos procesos de D-Link AC2600(DIR-2640). Los usuarios locales ordinarios pueden sobrescribir las variables globales en la sección .bss, causando el bloqueo del proceso o cambios"
    }
  ],
  "lastModified": "2026-07-09T01:16:55.317",
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