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CVE-2017-2784

Status: ModifiedHigh (8.1)—

An exploitable free of a stack pointer vulnerability exists in the x509 certificate parsing code of ARM mbed TLS before 1.3.19, 2.x before 2.1.7, and 2.4.x before 2.4.2. A specially crafted x509 certificate, when parsed by mbed TLS library, can cause an invalid free of a stack pointer leading to a potential remote code execution. In order to exploit this vulnerability, an attacker can act as either a client or a server on a network to deliver malicious x509 certificates to vulnerable applications.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Trustedfirmware — Mbed TLS

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2017-2784",
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          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
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              "version": "2.4.0"
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  "published": "2017-04-20T18:59:01.593",
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      "source": "talos-cna@cisco.com"
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      "url": "https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2017-01",
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      "source": "talos-cna@cisco.com"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "CWE-295"
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      "value": "An exploitable free of a stack pointer vulnerability exists in the x509 certificate parsing code of ARM mbed TLS before 1.3.19, 2.x before 2.1.7, and 2.4.x before 2.4.2. A specially crafted x509 certificate, when parsed by mbed TLS library, can cause an invalid free of a stack pointer leading to a potential remote code execution. In order to exploit this vulnerability, an attacker can act as either a client or a server on a network to deliver malicious x509 certificates to vulnerable applications."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad explotable libre de un apuntador de pila en el código de análisis de certificado x509 de ARM mbed TLS en versiones anteriores a 1.3.19, 2.x en versiones anteriores a 2.1.7 y 2.4.x en versiones anteriores a 2.4.2. Un certificado x509 especialmente manipulado, cuando se analiza por la biblioteca TLS mbed, puede provocar un inválido libre de un puntero de pila que conduce a una posible ejecución de código remoto. Para aprovechar esta vulnerabilidad, un atacante puede actuar como un cliente o un servidor en una red para entregar certificados maliciosos x509 a aplicaciones vulnerables."
    }
  ],
  "lastModified": "2026-06-17T01:16:50.360",
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}