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CVE-2011-4879

Estado: ModificadaAlta (8.5)—

miniweb.exe in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime does not properly handle URIs beginning with a 0xfa character, which allows remote attackers to read data from arbitrary memory locations or cause a denial of service (application crash) via a crafted POST request.

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 (5)

Siemens — Simatic HMI PanelsSiemens — WinccSiemens — Wincc FlexibleSiemens — Wincc Flexible RuntimeSiemens — Wincc Runtime Advanced

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2011-4879",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "baseScore": 8.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 7.8,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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  "affected": [
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      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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        }
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  "published": "2012-02-03T20:55:02.077",
  "references": [
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      "url": "http://aluigi.org/adv/winccflex_1-adv.txt",
      "source": "cret@cert.org"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
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      "value": "miniweb.exe in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime does not properly handle URIs beginning with a 0xfa character, which allows remote attackers to read data from arbitrary memory locations or cause a denial of service (application crash) via a crafted POST request."
    },
    {
      "lang": "es",
      "value": "miniweb.exe del servidor web HMI de Siemens WinCC flexible 2004, 2005, 2007 y 2008 anteriores a SP3; WinCC V11 (portal TIA) anteriores a SP2 Update 1; los TP, OP, MP, Comfort Panels y Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; y WinCC flexible Runtime no manejan apropiadamente URIs que comienzan con un caracter 0xfa, lo que permite a atacantes remotos leer localizaciones de memoria arbitrarias o provocar una denegación de servicio (caída de la aplicación) a través de una petición POST."
    }
  ],
  "lastModified": "2026-06-16T23:35:33.900",
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