FKIE_CVE-2021-27328

Vulnerability from fkie_nvd - Published: 2021-02-19 19:15 - Updated: 2026-07-09 01:16
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
Yeastar NeoGate TG400 91.3.0.3 devices are affected by Directory Traversal. An authenticated user can decrypt firmware and can read sensitive information, such as a password or decryption key.
References
cve@mitre.orghttp://packetstormsecurity.com/files/161560/Yeastar-TG400-GSM-Gateway-91.3.0.3-Path-Traversal.htmlExploit, Third Party Advisory, VDB Entry
cve@mitre.orghttps://github.com/SQSamir/CVE-2021-27328Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/161560/Yeastar-TG400-GSM-Gateway-91.3.0.3-Path-Traversal.htmlExploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://github.com/SQSamir/CVE-2021-27328Exploit, Third Party Advisory
Impacted products
Vendor Product Version
yeastar neogate_tg400_firmware 91.3.0.3
yeastar neogate_tg400 -
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
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              "matchCriteriaId": "4F5677DF-B933-4CED-8BD7-D717970BC083",
              "vulnerable": true
            }
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Yeastar NeoGate TG400 91.3.0.3 devices are affected by Directory Traversal. An authenticated user can decrypt firmware and can read sensitive information, such as a password or decryption key."
    },
    {
      "lang": "es",
      "value": "Los dispositivos Yeastar NeoGate TG400 versi\u00f3n 91.3.0.3, est\u00e1n afectados por un Salto de Directorio.\u0026#xa0;Un usuario autenticado puede descifrar el firmware y puede leer informaci\u00f3n confidencial, como una contrase\u00f1a o una clave de descifrado"
    }
  ],
  "id": "CVE-2021-27328",
  "lastModified": "2026-07-09T01:16:48.607",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "version": "2.0"
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        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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    "cvssMetricV31": [
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          "attackVector": "NETWORK",
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          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
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        "source": "nvd@nist.gov",
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  "published": "2021-02-19T19:15:12.627",
  "references": [
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      "tags": [
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      "url": "http://packetstormsecurity.com/files/161560/Yeastar-TG400-GSM-Gateway-91.3.0.3-Path-Traversal.html"
    },
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  "vulnStatus": "Modified",
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          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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